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Teen Period Swim Full-Coverage Bikini Bottom

$45.00 USD

Absorb about 2-3 regular tampons

Lower to mid-rise fit

Full coverage style

Premium UPF 50+ fabric

Machine washable

Front view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit
Teen Period Swim Full-Coverage Bikini Bottom shown front-facing against a light gray background
Back view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit
Front view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit
Back view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit
Front view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit

Felixe (she/her) has 44” hips and is wearing a size XL

Back view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit

Felixe (she/her) has 44” hips and is wearing a size XL

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.

Easy Returns within 30 Days

Apparel, Sleep & Swim

Returns & Exchanges

Apparel (excluding Shapewear), sleep and swim are eligible for return or exchange within 30 days of delivery with tags attached. Swim bottoms and one-pieces must have the original sanitary strip intact.

Still have questions? View our full policy here.

Rewards Members Earn 45 Points

Product Description

Swim with zero limits and total coverage. The Teen Period Swim Full-Coverage Bikini Bottom is designed for the teen who wants maximum security in and out of the water. Featuring a slightly higher rise and more fabric through the back, these bottoms provide a stable, stay-put fit for surfing, diving, or pool games. The built-in leakproof liner absorbs about 2-3 regular tampons' worth of flow, ensuring you stay dry and confident. Experience the best full-coverage period swimwear for teens who never want to sit out a pool party.

Swim in Style

A full coverage style with a mid-rise fit and full bum coverage.

Worry-Free Protection

Discreet, built-in protection that absorbs about 2-3 regular tampons worth.

Sun-Smart Protection

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

Zoom

Felixe (she/her) has 44” hips and is wearing a size XL | Front view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit | Black
Felixe (she/her) has 44” hips and is wearing a size XL | Back view of model wearing the Teen Period Swim Full-Coverage Bikini Bottom highlighting the coverage and fit | Black

How to Choose?

Essential

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

Heavy

  • • 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

  • • 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

  • • 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

  • • 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

Built-in protection that feels like nothing at all.

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

Top Layer

Smooth and comfortable liner in swimsuit fabric.

4.5
Rated 4.5 out of 5 stars
Based on 179 reviews
What our customers are saying
Customers say these swim bottoms fit well and pair easily with different tops. Many reviews mention the comfortable fit and good coverage. The bottoms receive praise for their versatility and style. While most users report positive experiences, a few note issues with durability on waterslides. Reviews frequently highlight how these bottoms allow young swimmers to enjoy water activities without worry. Parents appreciate the true-to-size fit and mix-and-match potential with existing swimwear.
89%would recommend this product
ComfortRated 4.7 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
EffectivenessRated 4.5 on a scale of 1 to 5
Keywords
Keywords
Rating
Ratings
Height
Height
Usual Pant Size - Knixteen
Usual Pant Size - Knixteen
179 reviews
  • Rated 5 out of 5 stars
    5 days ago
    Good Buy

    Simple suit bottom with good coverage. Easy to style with other bikini tops.

    AS
    Adrienne S.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    1 month ago
    Summer freedom!

    My tween has enjoyed swimming for months with no worries, thanks to these!

    DW
    Deborah W.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 1 out of 5 stars
    2 months ago
    Too big

    We ordered three bottoms for my daughter. The other two fit fine but these were too big and I'm having trouble with the return.

    KC
    Kathryn C.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    2 months ago
    Perfect

    Great coverage! Does not feel like a diaper! 10/10

    SD
    Sarah D. B.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    3 months ago
    Comfortable protection

    Easy to wear and wash. We got multiple to mix and match with tops.

    SS
    sara s.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 4 out of 5 stars
    3 months ago
    Bikini Bottoms

    A little snug....is my daughters description.

    AS
    Amy S.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    3 months ago
    Gamechanger

    These are a gamechanger as they work great for my daughter! Having a few pairs in black means she can swap them out whenever she needs to and she's able to participate in all the summer fun with her friends!

    EB
    Emily B.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    3 months ago
    Great option

    My daughter just started her period and I knew she would want something so she could still swim. These were great! They fit great and she felt secure. We just washed them after each swim.

    EA
    Erica A.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 3 out of 5 stars
    3 months ago
    Full coverage bottom

    I'm giving these bottoms 3 star because although they are made very well and fit as described.

    I would really like to see the protective area be much longer. They will do what's expected of them depending on your flow. I also wouldn't be moving around as freely as I would naturally in these bottoms as I would be worried that my bum and vag cracks would just fit in the protective zone.

    JL
    Julie L.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    3 months ago
    Happy Customer

    My daughter loves the new suit bottoms. We went with black since it matched a few of her tops and is universal in style.

    When I did checkout I thought I was to receive a free pair of underwear. It popped up initially and selected it, but disappeared after putting in my payment information. Just curious what that was and if I should have received it.

    HN
    Heather N.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    3 months ago
    Amazing

    Absolutely amazing and my daughter had zero anxiety going in the pool wearing these!!! Ten stars!!!!!

    RF
    Rachela F.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom
  • Rated 5 out of 5 stars
    4 months ago
    Great

    Works great

    K Profile picture for Knix
    Knix
    4 months ago

    Hey Jessica!

    Thanks so much for taking the time to review our Teen Period Swim Full-Coverage Bikini Bottom! We're so happy to hear it's working great for you!

    Team Knix

    JL
    Jessica L. G.
    Verified Buyer
    Reviewing
    Teen Period Swim Full-Coverage Bikini Bottom