Skip to content

Menu

Your Bag

Your cart is empty

But you're full of potential..

You Might Also Like

Color: Black

Size:

Size:

Rewards Members Earn 0 Points

Leakproof Classic One Piece Swimsuit

$125.00 CAD

Checkmark

Our #1 selling one-piece

Checkmark

Built-in leak protection

Checkmark

Premium UPF 50+ fabric

| Espresso
| Espresso
| Espresso
| Espresso
| Espresso
| General

Color: Espresso Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

Free Shipping on orders $100+

Shipping

Shipping

Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $100* CAD = Free Shipping (2-6 business days)

Orders under $100* CAD = $12 CAD Shipping (1-3 business days)

Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.

*After discounts, before shipping and taxes.

Easy Returns within 30 Days

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.

Rewards Members Earn 125 Points

"Brilliant for unexpected spotting."

- Oprah Daily

Product Description

A Timeless style in a fit that we’ve spent years perfecting. Adjustable straps make it adaptable for different torso lengths and made with 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.

Classic Style

A fit we've spent years perfecting.

Sun-Smart Protection

UPF 50+ fabric protects your skin while you soak up the sun.

Worry-Free Protection

Discreet, built-in protection that absorbs about 1 regular tampon worth.

Feels Made For You

Thicker, adjustable straps make it adaptable for different sizes and torso lengths. It features a shelf bra with removable cups and full bum coverage.

Zoom

| Espresso
| Espresso
| Espresso
| Espresso
| Espresso
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups

Leakproof swim works in layers

The 3-layer liner absorbs and locks in leaks, whether you're in or out of the water. When washed with detergent, blood releases through the top layer for a fresh, clean suit.

Soft Top Layer

Top Layer

A silky-smooth top layer that feels just like a regular swimsuit.

4.6
Rated 4.6 out of 5 stars
Based on 199 reviews
Total 5 star reviews: 162 Total 4 star reviews: 15 Total 3 star reviews: 12 Total 2 star reviews: 4 Total 1 star reviews: 6
91%would recommend these products
ComfortRated 4.8 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
SupportRated 4.3 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
Ease of UseRated 4.7 on a scale of 1 to 5
199 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Great suit

    True to size and very comfortable

    Christine d.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Great fit

    I love this bathing suit and was pleasantly surprised at how well it fit! Got my normal swimsuit size. I'd prefer a little more lift but it's very nice for being a one-piece. Got it at a major sale price so even more worth it.

    Dayna E.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    The most flattering swimsuit

    Bought this swimsuit last year in another colour and received so many compliments Thats I bought it again when on sale.

    Karin W.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Comfortable swimsuit

    Feel comfortable and confident

    LIEZEL J.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Love this and love that it comes in long torso!

    Janine
  • Rated 5 out of 5 stars
    1 month ago
    Gorgeous color

    Beautiful colour and nice fit. I like that it is a comfortable suit with great coverage for a layabout day on the beach

    Catherine M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Worked well

    Was nervous to try but used on a mid-cycle day with no leaks or mess

    Charlotte T.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    So comfortable and well constructed!

    Ashley
  • Rated 5 out of 5 stars
    2 months ago
    Fabulous Fit!

    A super fit. Classic style. Beautiful fabric.

    Jayne B.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    I love this suit!

    As a mom of two small kids, I LOVE this suit. It is so comfortable, flattering and I feel so great in it. Highly recommend!

    Mary C.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 months ago
    Great Suit

    Nice suit, does the job

    Shari L.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 months ago
    classic one piece swimsuit

    This swimsuit is so comfortable and nice to have on for a lot of the day.

    Erika H.
    Verified Buyer