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KnixTeen

Teen Period Swim Twist High Rise Bikini Bottom

$55.00 USD

Absorbs about 3 regular tampons

High-rise fit

Medium coverage style

Premium UPF 50+ fabric

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. 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

Clothing & Swim

Returns & Exchanges

Leggings, sweats, t-shirts, sleepwear, and swim items are eligible for return or exchange within 30 days of delivery with tags attached. Swim bottoms and pieces must have the original sanitary strip intact.

Still have questions? View our full policy here.

Rewards Members Earn 55 Points

Product Description

The high-waisted style you love, with protection you can trust. The Teen Period Swim Twist High-Rise Bikini Bottom combines a trendy "v-front" twist detail with a supportive high-rise fit that sits comfortably at the natural waist. Beneath the stylish exterior is a built-in leakproof liner that absorbs about 3 regular tampons' worth of flow, ensuring 360-degree security in the water. It’s the best high-waisted period swim bottom for teens who want to stay on-trend while staying totally protected.

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.

Sun-Smart Protection

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

Zoom

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

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.

4.7
Rated 4.7 out of 5 stars
Based on 97 reviews
Total 5 star reviews: 80 Total 4 star reviews: 8 Total 3 star reviews: 4 Total 2 star reviews: 4 Total 1 star reviews: 1
What our customers are saying
Customers say these swim bottoms provide reliable protection during water activities. Many praise the stylish design with its high-waisted cut and twist detail. The fit receives mixed feedback - while most find them comfortable and true to size, some mention they run snug. Several note the coverage level varies, with some wanting more coverage in the back. Reviews frequently highlight the confidence these bottoms give users during swimming and beach activities. The quality and design earn consistent praise, though a few mention sizing adjustments may be needed.
91%would recommend this product
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
Keywords
Keywords
Rating
Ratings
Height
Height
Usual Pant Size - Knixteen
Usual Pant Size - Knixteen
Size Purchased - Knixteen Underwear
Size Purchased - Knixteen Underwear
97 reviews
  • Rated 5 out of 5 stars
    4 months ago
    Great leakproof bottoms

    not a teen, but wanted to try the leakproof bottoms. These fit well I sized up a size from the Knix sizes and fit well.

    Whitney C.
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 5 out of 5 stars
    8 months ago
    Elle adore!

    La culotte lui va à merveille. Protège bien.

    Elise T.
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 5 out of 5 stars
    9 months ago
    5 Stars

    Very high quality

    Alexandra
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 4 out of 5 stars
    9 months ago
    Bikini bottom review

    Very practical!

    Cynthia M.
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 5 out of 5 stars
    10 months ago
    Knix

    Great fit and durability

    Cory B.
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 2 out of 5 stars
    11 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 2 out of 5 stars
    1 year 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 4 out of 5 stars
    1 year 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 4 out of 5 stars
    1 year 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 5 out of 5 stars
    1 year 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • Rated 5 out of 5 stars
    1 year ago
    Swim bottoms

    Fantastic product !!

    Amanda T.
    Verified Buyer
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom
  • 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
    Reviewing
    Teen Period Swim Twist High Rise Bikini Bottom