The Jumperjack Jumpsuit is a must have and our best seller!
Size :
M
The Jumperjack Jumpsuit is a must have and our best seller!
Brennan S.
Verified
Gorgeous, slim fitting jumpsuit! I'd recommend it to anyone!
Jacob L.
Verified
6ft tall 160 lbs ordered a large and it was a perfect fit, very good quality, I love that others can't tell it's a jumpsuit.
Bobby D.
Verified
Love all of my rompers from RomperJack ordered them and received them with in 1-2 weeks from the order date.
Butter-Soft Fabric
Tailored Slim Fit
Smart Details
All-Occasion Ready
Description & Features
The Versatile JumperJack Jumpsuit
Bold. Comfortable. Effortless.
6.2.5
Unmatched Comfort and Style
The JumperJack Jumpsuit combines comfort and style like no other piece of clothing. Made with soft, breathable fabric, it allows for easy movement, whether you're running errands, attending a casual event, or lounging at home. This jumpsuit fits the body snugly without being restrictive, making it an ideal choice for different activities and occasions. You can wear it confidently anytime, anywhere!
Effortless Fashion for Every Occasion
This stylish jumpsuit is not only about comfort but also about looking good. The minimalist design and contemporary cuts make it a fashionable option for both casual and semi-formal events. Pair it with sneakers for a laid-back look or dress it up with loafers for a night out. The JumperJack Jumpsuit proves that you can be stylish effortlessly, combining both fashion and functionality in one outfit.
Easy Care and Maintenance
Caring for the JumperJack Jumpsuit is straightforward and hassle-free. It is machine washable and dries quickly, which means you spend less time worrying about laundry and more time enjoying your day. Because of its durable fabric, you can rely on it to maintain its shape and color, even after multiple washes. This easy maintenance makes it a practical choice for anyone looking to simplify their wardrobe while still looking their best.
Size Information
Size & Fit Guide
Find your fit. Own your look. Our rompers and jumpsuits are designed for a modern, tailored silhouette—and the right size makes all the difference.
Use this guide to learn how each style fits, take your measurements, compare our size charts, and get a personalized recommendation with WAIR.
How RomperJack Fits
SHORTS / ONE PIECE
Rompers
RomperJack rompers have a slim, fitted silhouette through the chest, waist, and shorts. They're designed to look sharp rather than loose or oversized.
If you're between sizes, have broader shoulders or thighs, or simply prefer a little extra room, consider the larger size.
PANTS / ONE PIECE
Jumpsuits
Our jumpsuits feature a European-inspired slim fit, with a streamlined upper body and tapered leg. They're cut for a tailored, modern look.
Because they're full-length, pay particular attention to the torso and rise. You should be able to sit, reach, and bend comfortably without pulling through the shoulders or crotch.
Between sizes? The larger size is generally a better starting point for comfort and movement, especially if you have a longer torso or prefer a less fitted look. Fabric and fit may vary by style; always check the product details.
How to Measure Your Body
Use a flexible tape measure over lightweight clothing or against your skin. Keep it level and comfortably snug, not tight. Having someone help can improve accuracy.
01 / CHEST
Chest
Wrap the tape under your arms and around the fullest part of your chest.
02 / WAIST
Waist
Measure around your natural waist, generally above your belly button. Don't hold your stomach in.
03 / HIPS
Hips & Seat
Measure around the fullest part of your hips and seat so you have room to sit and move.
04 / HEIGHT
Height
Stand straight without shoes and measure from the floor to the top of your head.
05 / INSEAM
Inseam
Measure from the crotch along the inside of your leg to your desired pant hem. Especially useful for jumpsuits.
06 / TORSO
Torso Length
Check how much length you need between your shoulder and crotch. Longer torsos often need extra room in a one-piece style.
Compare chest and waist measurements with the charts below. Height, weight, and length provide extra context; they should not replace a comfortable fit through your torso.
ROMPERJACK ORIGINALS
Romper Size Chart
Designed with a slim, fitted cut. Compare your chest and waist first, then use the height and weight ranges as additional guidance.
Romper Sizing
Best used for RomperJack-branded rompers only. All body measurements are shown in inches; weight is shown in pounds.
Size
Chest
Waist
Height
Weight (lbs)
S
34–38"
26–28"
64–68"
140–155
M
38–40"
28–30"
65–70"
155–170
L
40–42"
30–32"
65–73"
170–190
XL
42–44"
32–34"
68–74"
190–210
XXL
44–46"
34–36"
74–77"
190–210
XXXL
46–48"
36–38"
70–77"
210+
Fit noteThis chart is intended as a guide. If you're between sizes or prefer more room, size up.
Best forUse chest and waist as your starting point, then use height and weight as secondary guidance.
Romper Fit Example
See the fit in action
Our rompers are designed for a close, tailored fit through the chest and waist, with room to move comfortably through the shorts. Use the model photo to see how the silhouette sits on the body.
Size reference: At 6'0" and 190 lbs, Large can be a useful starting point, depending on your chest, waist, and torso measurements. Individual fit may vary.
ROMPERJACK ORIGINALS
Jumpsuit Size Chart
Our jumpsuits are slim-fitting with a tapered cut. Consider chest, waist, and overall torso comfort when selecting your size.
Jumpsuit Sizing
Best used for RomperJack-branded jumpsuits only. Measurements are shown in inches.
Size
Chest
Waist
Length
S
35–37"
26–28"
28"
M
37–39"
28–30"
30"
L
39–42"
30–33"
31"
XL
42–44"
33–35"
33"
XXL
44–46"
35–38"
34"
XXXL
46–50"
38–40"
44"
Fit noteJumpsuits are designed for a slimmer, European-inspired fit with a tapered leg.
Best forUse chest and waist first, then confirm the overall length and torso comfort based on your body proportions.
Jumpsuit Fit Example
6'0" · 190 lbs · Size Large
The model is 6 feet tall, weighs 190 lbs, and wears a Large. This shows how our slim, tapered jumpsuit is designed to sit through the shoulders, waist, and legs.
For your best fit, compare your chest and waist measurements, and consider your torso length before selecting a size.
PERSONALIZED SIZE RECOMMENDATIONS
Need a Second Opinion? Try WAIR.
Not sure which size to choose? The interactive WAIR sizing tool can help you find a recommended size for participating RomperJack rompers and jumpsuits, based on information about your body and fit preferences.
Open the romper or jumpsuit you're shopping for, look for the WAIR sizing option near the size selector, and follow the prompts. WAIR is accessed on participating product pages—not directly from this guide.
WAIR is a helpful recommendation tool. Review the product description and fit details before making your selection.
PLEASE NOTE
About RJ Picks & Partner Sizing
This size guide applies only to RomperJack-branded rompers and jumpsuits.
Styles in RJ Picks are curated from partner brands and may follow different size standards. For shirts, pants, shorts, jackets, shoes, accessories, two-piece sets, and other partner products, refer to the individual product page or the partner brand's website for accurate sizing information.
Do not assume that the RomperJack charts or WAIR recommendations apply to RJ Picks products.
Size & Fit FAQs
Do RomperJack rompers and jumpsuits run small?
They're designed with a slim, tailored silhouette, not a relaxed or oversized fit. If you're between sizes or prefer extra room, consider sizing up.
What's most important when sizing a one-piece?
Chest and waist are your starting points, but torso length and the room you need to sit or bend comfortably are also important.
Can I use these charts for RJ Picks items?
No. RJ Picks partner products may use different sizing. Use the size information on that product's page or on the partner brand's website.
Returns & Exchanges
Currently, store credit is only available for returns and exchanges. Once your return or exchange has been processed, you will receive an email containing a RomperJack E-Gift card code for the amount of the item returned, not including any initial shipping charges. Please submit a return here. Read our return policy here.
Shipping Information
We offer standard 3- to 7-business-day shipping and 2- to 5-business-day priority shipping for Domestic orders. Some items may be on preorder, which is stated on the product page. This may take longer to ship. International shipping can take anywhere between 7 and 21 business days.
Preorders
If you order a preorder item and an in stock item, your full order will ship only when the preorder inventory is available at our warehouse. If you need the in stock item before the preorder, please make a separate purchase. For preorder shipping dates, please check the product description section. Some gift cards and promotions may not be available for preorders.
The JumperJack Jumpsuit combines comfort and style like no other piece of clothing. Made with soft, breathable fabric, it allows for easy movement, whether you're running errands, attending a casual event, or lounging at home. This jumpsuit fits the body snugly without being restrictive, making it an ideal choice for different activities and occasions. You can wear it confidently anytime, anywhere!
Effortless Fashion for Every Occasion
This stylish jumpsuit is not only about comfort but also about looking good. The minimalist design and contemporary cuts make it a fashionable option for both casual and semi-formal events. Pair it with sneakers for a laid-back look or dress it up with loafers for a night out. The JumperJack Jumpsuit proves that you can be stylish effortlessly, combining both fashion and functionality in one outfit.
Easy Care and Maintenance
Caring for the JumperJack Jumpsuit is straightforward and hassle-free. It is machine washable and dries quickly, which means you spend less time worrying about laundry and more time enjoying your day. Because of its durable fabric, you can rely on it to maintain its shape and color, even after multiple washes. This easy maintenance makes it a practical choice for anyone looking to simplify their wardrobe while still looking their best.
Size Information
Size & Fit Guide
Find your fit. Own your look. Our rompers and jumpsuits are designed for a modern, tailored silhouette—and the right size makes all the difference.
Use this guide to learn how each style fits, take your measurements, compare our size charts, and get a personalized recommendation with WAIR.
How RomperJack Fits
SHORTS / ONE PIECE
Rompers
RomperJack rompers have a slim, fitted silhouette through the chest, waist, and shorts. They're designed to look sharp rather than loose or oversized.
If you're between sizes, have broader shoulders or thighs, or simply prefer a little extra room, consider the larger size.
PANTS / ONE PIECE
Jumpsuits
Our jumpsuits feature a European-inspired slim fit, with a streamlined upper body and tapered leg. They're cut for a tailored, modern look.
Because they're full-length, pay particular attention to the torso and rise. You should be able to sit, reach, and bend comfortably without pulling through the shoulders or crotch.
Between sizes? The larger size is generally a better starting point for comfort and movement, especially if you have a longer torso or prefer a less fitted look. Fabric and fit may vary by style; always check the product details.
How to Measure Your Body
Use a flexible tape measure over lightweight clothing or against your skin. Keep it level and comfortably snug, not tight. Having someone help can improve accuracy.
01 / CHEST
Chest
Wrap the tape under your arms and around the fullest part of your chest.
02 / WAIST
Waist
Measure around your natural waist, generally above your belly button. Don't hold your stomach in.
03 / HIPS
Hips & Seat
Measure around the fullest part of your hips and seat so you have room to sit and move.
04 / HEIGHT
Height
Stand straight without shoes and measure from the floor to the top of your head.
05 / INSEAM
Inseam
Measure from the crotch along the inside of your leg to your desired pant hem. Especially useful for jumpsuits.
06 / TORSO
Torso Length
Check how much length you need between your shoulder and crotch. Longer torsos often need extra room in a one-piece style.
Compare chest and waist measurements with the charts below. Height, weight, and length provide extra context; they should not replace a comfortable fit through your torso.
ROMPERJACK ORIGINALS
Romper Size Chart
Designed with a slim, fitted cut. Compare your chest and waist first, then use the height and weight ranges as additional guidance.
Romper Sizing
Best used for RomperJack-branded rompers only. All body measurements are shown in inches; weight is shown in pounds.
Size
Chest
Waist
Height
Weight (lbs)
S
34–38"
26–28"
64–68"
140–155
M
38–40"
28–30"
65–70"
155–170
L
40–42"
30–32"
65–73"
170–190
XL
42–44"
32–34"
68–74"
190–210
XXL
44–46"
34–36"
74–77"
190–210
XXXL
46–48"
36–38"
70–77"
210+
Fit noteThis chart is intended as a guide. If you're between sizes or prefer more room, size up.
Best forUse chest and waist as your starting point, then use height and weight as secondary guidance.
Romper Fit Example
See the fit in action
Our rompers are designed for a close, tailored fit through the chest and waist, with room to move comfortably through the shorts. Use the model photo to see how the silhouette sits on the body.
Size reference: At 6'0" and 190 lbs, Large can be a useful starting point, depending on your chest, waist, and torso measurements. Individual fit may vary.
ROMPERJACK ORIGINALS
Jumpsuit Size Chart
Our jumpsuits are slim-fitting with a tapered cut. Consider chest, waist, and overall torso comfort when selecting your size.
Jumpsuit Sizing
Best used for RomperJack-branded jumpsuits only. Measurements are shown in inches.
Size
Chest
Waist
Length
S
35–37"
26–28"
28"
M
37–39"
28–30"
30"
L
39–42"
30–33"
31"
XL
42–44"
33–35"
33"
XXL
44–46"
35–38"
34"
XXXL
46–50"
38–40"
44"
Fit noteJumpsuits are designed for a slimmer, European-inspired fit with a tapered leg.
Best forUse chest and waist first, then confirm the overall length and torso comfort based on your body proportions.
Jumpsuit Fit Example
6'0" · 190 lbs · Size Large
The model is 6 feet tall, weighs 190 lbs, and wears a Large. This shows how our slim, tapered jumpsuit is designed to sit through the shoulders, waist, and legs.
For your best fit, compare your chest and waist measurements, and consider your torso length before selecting a size.
PERSONALIZED SIZE RECOMMENDATIONS
Need a Second Opinion? Try WAIR.
Not sure which size to choose? The interactive WAIR sizing tool can help you find a recommended size for participating RomperJack rompers and jumpsuits, based on information about your body and fit preferences.
Open the romper or jumpsuit you're shopping for, look for the WAIR sizing option near the size selector, and follow the prompts. WAIR is accessed on participating product pages—not directly from this guide.
WAIR is a helpful recommendation tool. Review the product description and fit details before making your selection.
PLEASE NOTE
About RJ Picks & Partner Sizing
This size guide applies only to RomperJack-branded rompers and jumpsuits.
Styles in RJ Picks are curated from partner brands and may follow different size standards. For shirts, pants, shorts, jackets, shoes, accessories, two-piece sets, and other partner products, refer to the individual product page or the partner brand's website for accurate sizing information.
Do not assume that the RomperJack charts or WAIR recommendations apply to RJ Picks products.
Size & Fit FAQs
Do RomperJack rompers and jumpsuits run small?
They're designed with a slim, tailored silhouette, not a relaxed or oversized fit. If you're between sizes or prefer extra room, consider sizing up.
What's most important when sizing a one-piece?
Chest and waist are your starting points, but torso length and the room you need to sit or bend comfortably are also important.
Can I use these charts for RJ Picks items?
No. RJ Picks partner products may use different sizing. Use the size information on that product's page or on the partner brand's website.
Returns & Exchanges
Currently, store credit is only available for returns and exchanges. Once your return or exchange has been processed, you will receive an email containing a RomperJack E-Gift card code for the amount of the item returned, not including any initial shipping charges. Please submit a return here. Read our return policy here.
Shipping Information
We offer standard 3- to 7-business-day shipping and 2- to 5-business-day priority shipping for Domestic orders. Some items may be on preorder, which is stated on the product page. This may take longer to ship. International shipping can take anywhere between 7 and 21 business days.
Preorders
If you order a preorder item and an in stock item, your full order will ship only when the preorder inventory is available at our warehouse. If you need the in stock item before the preorder, please make a separate purchase. For preorder shipping dates, please check the product description section. Some gift cards and promotions may not be available for preorders.
Customer Reviews
Overall rating: 4.4 / 5 from 32 reviews.
I was unsure as to which size I should order, as the online sizing tool and the size charts for the rompers and jumpsuits gave contradicting results. As I am an EU-based customer, I would prefer not needing to return the product as it would be quite a hassle.
I asked customer service for which size they would recommend based on my measurements, and decided to follow the size chart.
Shipping was very fast, even for an international delivery. Two days after ordering, I got my jumpsuit delivered - considerably faster than their promised delivery of a week.
The bottom of the jumpsuit fits perfectly, but the top is rather roomy for me. Given this is my first Romperjack jumpsuit, I might simply have selected a size too large - I'll see once I get to order another one.
The Jumperjack jumpsuit is comfortable, but the colour is a bit darker in real life (more black) than shown online, and there seems to be missing belt loops on the sides, according to the online pictures.
I also miss an extra button on both cufflinks to adjust them a bit smaller - a common feature on regular shirts, and would be great for hindering the sleeves from extended below my wrists.
Overall a nice product, which I'll definitely be wearing on a regular basis. I love the concept of more formal jumpsuits, so Jumperjack is definitely up my alley.
I am 5’ 7” but have big shoulders and the XXL fits perfect. I only had to hem the pants. We took the family Christmas photo and the photographer was surprised that I was wearing a one piece.
I have four different solid-color Romperjack jumpsuits and love them all. The fit of size XL happens to be perfect for my more or less middleweight build, 170lbs, 5’11”. Recently I stitched up a patch of the Sab Cat, which is the mascot of the IWW, the union to which I belong, and put it on the back of a black JumperJack, then went out dancing. Compliments all over the place.
Please Romperjack, bring back maroon velvet! Or something in maroon. XO
Another fantastic purchase from Romperjack! Love this look and a huge fan of the long sleeves. Nice, and sleek. Very comfortable. Tons of compliments. Another successful purchase. Thank You!
Quality
The quality is excellent. The material is very nice, soft, durable. Just feels like quality fabric.
Sizing
I’m 5’9. I got Large. L is the right size for me, even though the length would be ideal, but it’s not the length of the inseam, IMO, it’s the length of the torso. I’m ok with the length being a bit longer at the ankle than I wear, falls in the range of acceptable, but to have the garment’s waist fall about an inch or 2 below my natural waist is not ideal and over the course of the day or night, becomes a bit of a bother. I’m not into wearing a belt w my jumpsuit. I like the option to do so, but If I wanted that look, I’d wear pants and a shirt.
Fits “larger” or rather longer than I’d like in the torso, the adjustable buttons help alleviate the difference in your waist and the jumper’s. I could not drop down in size bc I am within the range for L on all measurements. As is the L is a bit of a challenge to get over my shoulders since I am fit. 45 chest, 31 waist, 30-32 inseam, 175cm, 175lbs.
Service
Opted to pay additional for USPS priority delivery. There was a mixup at the warehouse and after 5 days contacted them. They quickly refunded my priority premium and said it would be sent right away. I would assume they would have resent priority (3 day delivery) but 5 days later my order arrived.
They were quick to refund but did nothing for the mixup. No additional refund, seemingly sent USPS regular since it arrive 5 days later. No discount code for additional savings. Ok. No biggie. Yet I ordered again bc the product is quality and I want to see if we can find another one or if this was just a fluke gem. We shall see. Unfortunately, second order did not arrive on time yesterday. It will not arrive in the time of arrival window. As it continues to sit in Chicago.
Summary
Quality product. May need to alter if you want a custom fit. Slim or European fit. Customer service , fast but seem to lack follow thru in not making the same mistakes.
Overall not disappointed in the garment. I’ve been through the sizing issue before just because of my athletic proportions to not ding RomperJack for that, but if you are in a hurry…I’d suggest thinking twice or following up immediately after…or better yet before you order. 2 out of 2 orders not handled efficiently or w a lot of empathy.
The quality is excellent, however my torso is too short for the medium size. The leg length (inseam measurement) is perfect when I hold the waist of the jumpsuit up to my waist. The jumpsuit waist normally falls about 3 inches below my waist, which I think is my fault because my height has decreased about 3 inches with age. The height decrease appears to be mostly in the spine.
I like this jumpsuit so much I am not going to give up! When ever the S size becomes available I am going to take the risk and order one.
George C.
I love how this Jumpsuit fits and it looks sexy as hell. I can put a belt on and no one can tell it's one piece. Or, no belt, sag a little, and it becomes an obvious jumpsuit that fits just right. I love it, and as soon as I put it on, I came back and and ordered the linen suit! The only issue is it's summer in Cleveland and the polyester traps ALL OF THE HEAT. Great ploy to get me to buy the linen suit too, lol! I can't wait for my next arrival. Also, the free trunks are really cool and comfy too.
Love love love! I will admit I was skeptical but when the romper came it fit geat and looks amazing! I highly recommend it but just know that they run SMALL. I am usually a small and had to get a large, so make sure you pay attention to the sizing chart.
Quality seems a bit inconsistent. Love the red suede one but this one runs large in the torso and looks frumpy/big around the waist section. Unfortunately that’s extremely difficult to get tailored with a jumpsuit
