Runsie Romper


📏Size Chart

This all-in-onesie features comfy wide crisscross straps, a peek-a-boo keyhole boob sweat vent, and a waist-snatching waistband with flowy run shorts, complete with built-in matching underwear so you can move with confidence. 

Perfect for jogging, walking, hiking, and weightlifting.

Performance Level:

Features + Fit

• Wide crisscross straps
• Keyhole boob sweat vent
• Removable pads
• Built-in underwear
• Outer leg slits to allow full range of motion
• Inseam: 1.75“ (4.5 cm)

Model Info

Samara is wearing size S
Height: 5’9” • Bust: 32 • Bra 32C • Waist: 25” • Hips: 36”• Torso: 58”

Model Info
Model: Sam Height: 5.9" Bust: 32" Bra: 32C Waist: 25" Hips: 36" Torso: 58" Sam is wearing size S
Fabric + Care

Top: Brushed ButterSoft Flex
75% Nylon + 25% Spandex
Shorts: 100% recycled polyester; stretch woven fabric

Customer Reviews

Based on 73 reviews
Size Bought: M
Overall Fit: True to Size
Height: 5 3’
Body Type: Hourglass
Weight: 140
In Love!!

Absolutely love this! I wear it frequently and it’s perfect to go work out and to just hang out with some friends in! Would love to see it in more colors!!

Thank you for your review, we appreciate it a lot!

Size Bought: XS
Overall Fit: True to Size
Weight: 105
Cute but…

Was excited for this romper. The straps were soft and it was comfortable, however, the top started to pill after just one wash. I thought quality would be better so I was disappointed. Can’t return this now 😭 I don’t recommend unfortunately…

Hi, am a member of the POPFLEX Customer Love Team and I want to help with this issue. I have emailed you privately for more info. - Kat

Size Bought: M
Overall Fit: Large
Height: 1m 55 cm
Bra Size: Europe 90E
Body Type: Hourglass
Weight: 58 kg
a bit too big

I love it but it's not close to my body like i wanted.
It's a bit loose and too big for me

Becky Lazarus
Size Bought: M
Overall Fit: True to Size
Height: 5’5”
Bra Size: 34D
Body Type: Hourglass
Weight: 155lbs
Love this!

I love the look and cut and comfort of this romper. The only thing I wish is that it was a bit more supportive for my bust. It has been fine doing yoga and Pilates in, but anytime I dry and do more intense cardio I find my boobs are bouncing a lot and may even fall out if I went for a run in it like it was designed for.

Size Bought: S
Height: 5'5"
Bra Size: 34A
Body Type: Hourglass
This is Perfection!

Oh my gosh, I really didn't know I needed this until I put it on. A combination of my favorite sprint shorts and a cute and comfortable popflex bra?!?! YES! The fabric is extremely soft and the length of the "onesie" works for my body shape. It's definitely more low impact, I have a small chest though so it works for me. Can't wait to see more of these!

Size Bought: S
Overall Fit: True to Size
Height: 5'6"
Bra Size: 30F
Body Type: Athletic
Weight: 145
Extremely comfortable but lacking support

I am always skeptical about ordering rompers online as the fit can be a bit hard to get right. I was pleasantly surprised to find that it fit well and was extremely comfortable.

The only problem that I had with the romper is that my chest barely fits and there is no support. The only activity that I could do in this romper is a bit of light yoga. Due to the shape it is also challenging to wear a bra under the top. I am hoping to find a bra that fits so that I can wear the romper for more activities because it is extremely comfortable. For now it is resigned to cleaning around the house and lounging in the evenings.