Leakproof Classic One Piece Swimsuit
30% off
• Timeless style in a fit that we’ve spent years perfecting
• Adjustable straps make it adaptable for different torso lengths
• Premium UPF 50+ fabric
• Discreet, built-in protection against leaks: Absorbs about 1 regular tampon worth of blood
Fit tip: Plus cup sizes come with thicker straps for added support.
Leakproof fit tip: A snug fit against your body helps keep everything where it should be. Check the size guide to find your best fit. If you’re in between, size down to ensure the liner is sitting closer to your body.
• Absorbs about the same as 1 regular tampon worth of blood
• Full butt coverage
• Adjustable straps
• Built-in shelf bra
• Removable cups
• Thicker straps for plus cups for added support
🇨🇦 Free standard shipping over $100.
Free expedited shipping over $150.
(after discounts, before shipping + taxes) All items ship from within Canada.
EXCHANGE ONLY Items on sale during our Anniversary Sale are exchange only. For items with a 20% or more discount you may exchange for another item or store credit. No refunds.
Your swimwear questions, answered.
Yes, our entire Swim Collection is available for exchange or return. If you’re not happy with your fit, the suits can be returned within 30 days with the sanitary strip intact and tags attached.
Most of our swimsuit styles come in options for A-G cups. Select styles accommodate from an A-DD. Please refer to the side guide on the product page for details.
Yes, some of our suits do have cups that can be removed. Please refer to the “How It Fits” section on the product page for details.
Fit to your cup size for the best support. If there is a dramatic difference between your underbust and hip measurement, we suggest trying the suit on with the sanitary strip intact and tags attached. That way it can be returned or exchanged for a better fit if needed.
- Jodi1 week agoRated 5 out of 5 stars5 Stars
Purchased and the cut of the bathing suit is top notch! Fits like a glove but is supportive! I also love to wear it with high waisted pants, I wish knix would make high waisted swim shorts that were 5” to pair with it!
Was this helpful? - Ray K.Verified Buyer1 week agoRated 5 out of 5 starsPerfect fit
Perfect basic swimsuit with a fun pattern. I usually go for plain black, but I’m branching out now. I wore it everyday on my beach vacation.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeSupportRated 3.0 on a scale of 1 to 5Low HighEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentWas this helpful? - Angela4 weeks agoRated 5 out of 5 stars5 Stars
Fits well, nice fabric
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