Skip to content

Your Bag

Your cart is empty

But you're full of potential..

You Might Also Like

Color: Black
Best Seller

Color: Black

Size:

Size:

Size and Fit Guide

Mix & Match: 3+ for $20 each
Rewards Members Earn 0 Points
KnixTeen

Teen Period Swim Twist High Rise Bikini Bottom

$60.00 CAD

Checkmark

Absorbs about 3 regular tampons

Checkmark

High-rise fit

Checkmark

Medium coverage style

Checkmark

Premium UPF 50+ fabric

Checkmark

Machine washable

| Black
| Black
| Black
Rose (she/her) has 35

Rose (she/her) has 35" hips and is wearing a size M

Rose (she/her) has 35

Rose (she/her) has 35" hips and is wearing a size M

| Black
| General

Color: Black

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
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.

Sale & Last Call

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

Rewards Members Earn 60 Points

Swim in Style

A trendy high-rise bikini bottom with a twist-front waistband and medium bum coverage.

Worry-Free Protection

Discreet, built-in protection that absorbs about 3 regular tampons worth.

Stay Sun-Safe

Premium UPF 50+ fabric shields you from UV rays while you relax, swim, and play.

Zoom

| Black
| Black
| Black
Rose (she/her) has 35
Rose (she/her) has 35
| Black
| General

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • Everyday Wear
  • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • heavy period days
  • overnight protection
  • light bladder leaks
  • tsp
    6-11 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 3-6 super tampons
  • cup
    about 1-2 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • light period days
  • sweat
  • sweat and discharge
  • 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
  • moderate period days
  • light bladder leaks
  • sweat
  • tsp
    about 3-6 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-3 super tampons
  • cup
    about 0.5-1 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • extra heavy period days
  • overnight protection
  • light bladder leaks
  • tsp
    13-17 tsp
  • pad
    3.5-4.5 regular pads
  • tampon
    7-9 super tampons
  • cup
    2-3 menstrual cups
LEAKPROOF SWIM WORKS IN LAYERS

Built-in protection that feels like nothing at all.

Looks just like regular swimwear. Non-swelling liner and patented no-show design.

Soft Top Layer

Top Layer

Smooth and comfortable liner in swimsuit fabric.

4.7
Rated 4.7 out of 5 stars
Based on 95 reviews
Total 5 star reviews: 79 Total 4 star reviews: 7 Total 3 star reviews: 4 Total 2 star reviews: 4 Total 1 star reviews: 1
91%would recommend these products
ComfortRated 4.8 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
EffectivenessRated 4.8 on a scale of 1 to 5
95 reviews
  • Rated 5 out of 5 stars
    1 week ago
    Elle adore!

    La culotte lui va à merveille. Protège bien.

    Elise T.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Very high quality

    Alexandra
    Verified Buyer
  • Rated 4 out of 5 stars
    1 month ago
    Bikini bottom review

    Very practical!

    Cynthia M.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Knix

    Great fit and durability

    Cory B.
    Verified Buyer
  • Rated 2 out of 5 stars
    3 months ago
    2 Stars

    The fit is good but i dont like that the twist isnt attached at all. It creates a weird look

    Erin
    Verified Buyer
  • Rated 2 out of 5 stars
    3 months ago
    faded after first swim

    I bought this suit for my daughter and it's adorable - love the fit - but on the first day she swam in it, it was completely faded. I thought it may be just wet/dry dynamic but it's not. Pretty disappointed because I thought that this was high quality and the fit it so nice!

    Dabney R.
    Verified Buyer
  • Rated 4 out of 5 stars
    3 months ago
    Super cute, a little small

    Ordered these for a trip to Vegas; super cute and worked super well, do be aware these are pretty snug. I got mediums and they felt super tight.

    Jayla L.
    Verified Buyer
  • Rated 4 out of 5 stars
    4 months ago
    swim bottom

    nice quality. the leg openings were higher than pictured on my daughter, but that was probably a fit issue. the twist part of the band laid funny on her, making a gap, but i also feel this was a fit issue. we returned and purchased a different style. (returns are super easy :) )

    we purchased this to replace her kt one piece from last year. that suit worked perfectly as far as absorbancy.

    Melissa B.
    Verified Buyer
  • Rated 5 out of 5 stars
    7 months ago
    Excellent Quality and Fit

    The fit is great and on target with the sizing chart online, haven't had a chance to use them yet.

    LH
    Verified Buyer
  • Rated 5 out of 5 stars
    9 months ago
    Swim bottoms

    Fantastic product !!

    Amanda T.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    Love!

    My daughter loves the high waist fit and the absorbency! Perfect for all the summer fun!

    Monique L.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    It works great!

    The bottoms looks so cute, you can't tell that they're period swim! I was surprised at how effective they are, I wish I knew about them earlier!

    Katrina P.
    Verified Buyer