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One Piece Swimsuit
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One Piece Swimsuit

Sizes:

Size Guide

Models wearing MeUndies products
Size XS S M L XL 2XL 3XL 4XL
Fullest Part of Bust (in) 32-34 34-36 36-38 38-40 40-42.5 42.5-45 45-47 47-49
Underbust Measurement (in) 26.5-28.5 28.5-30.5 30.5-32.5 32.5-34.5 34.5-36.5 36.5-38.5 38.5-40.5 40.5-42.5
Natural Waist (in) 24-26 26-28 28-30 30-32 32-35 35-38 38-41 41-43
Low Hip (in) 35-36 37-38 39-40 41-43 44-46 47-49 50-51 52-54
Size XS S M L XL 2XL 3XL 4XL
Fullest Part of Bust (cm) 81.5-86.5 86.5-91.5 91.5-96.5 96.5-101.5 101.5-108 108-114.5 114.5-119.5 119.5-124.5
Underbust Measurement (cm) 67.5-72.5 72.5-77.5 77.5-82.5 82.5-87.5 87.5-92.5 92.5-98 98-103 103-108
Natural Waist (cm) 61-63.5 66-68.5 71-73.5 76-81 84-89 91.5-96.5 99-101.5 104-109
Low Hip (cm) 89-91.5 94-96.5 99-101.5 104-109 111-117 119-124.5 127-129.5 132-137

Fit

"This product Runs normal"

Unsure of What Size to Buy?

Reach out to our CheekSquad at meundies.com/help so we can help you find the perfect size.

Return Policy

If you're not satisfied with any product for any reason, just reach out to the CheekSquad for a full refund or exchange. No caveats. No questions. No worries.

No One Piece Me Undies colors available in this size.

Unused Swim products can be returned within 14 days of delivery. Must have original tags still attached.

Product Information +

This Is the One

The One Piece you’ve been looking for? It’s right here. Our One Piece is fully lined with adjustable straps, moderate back coverage, and a shelf bra with removable pads. The swimsuit that can keep up with whatever you’re doing—even if you’re the beach-cartwheel-champion of your friend group.

Hang out in the ocean with Swimwear that’s good for the ocean. Made from recycled nylon fabric and old fishing nets, you’re helping to reduce plastic waste and carbon emissions.

It's All in the Details

  • 78% ECONYL® Regenerated Nylon / 22% Elastane
  • BPA/PFA Free
  • UPF 50+ to keep you extra protected
  • Resistant to sunscreen and oil
  • Moderate back coverage
  • Shelf bra
  • Plunging neckline
  • Adjustable straps for the perfect fit
  • Includes removable pads
  • Fully lined
  • Ethically sourced
  • Imported under fair working conditions

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Orders are processed within 1-2 business days. Expected arrival times vary by location.