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Home / Shop All Teen / Teen Period Swim Short
Best Seller

Teen Period Swim Short

$55.00 USD

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Absorbs about 2 super tampons

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High-rise fit

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Full coverage style

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Premium UPF 50+ fabric

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Machine washable

| Black
| Black
| Black
| Black
For this style, we recommend going one size up. | General

For this style, we recommend going one size up.

Absorbency: Moderate
Drop
Drop
Drop
Drop
Drop

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $100+

Shipping

HOLIDAY SHIPPING

Give the gift of Knix! To receive your order by Dec 24th, please order by the following dates.

All States - Urban Centers (except Hawaii, Alaska)
Standard: Sunday, December 14
Express: Tuesday, December 17

Alaska, Hawaii & Rural
Standard: Wednesday, December 10
Express: Wednesday, December 10
Express shipping is unavailable for international orders:

Africa, Central/South America, and Caribbean
Standard: Wednesday, December 10

Asia, Australia, and New Zealand 
Standard: Thursday, December 11

Europe and the Middle East 
Standard: Thursday, December 11

United Kingdom, France, Germany, Netherlands, Switzerland, and Japan 
Standard: Monday, December 15

Please note: Weather conditions and carrier issues may cause delays. Delivery dates are not guaranteed.

Processing Time
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* USD = Free standard Shipping (4-8 business days)**
Expedited = $4.99 USD (3-6 business days)**

Orders under $100* USD = $7.99 USD Standard Shipping (4-8 days)**
Expedited = $9.99 USD (3-6 business days)**

*After discounts, before shipping and taxes. Processing times not included in estimates.
**Military Addresses Excluded. Standard Military Address Shipping = $10.00 USD (est. varies per location)
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.
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Swim in Style

A comfortable high-rise bikini bottom with a wide waistband and maximum bum coverage.

Worry-Free Protection

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

Stay Sun-Safe

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

Zoom

| Black
| Black
| Black
| Black
For this style, we recommend going one size up. | 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
    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
  • • light period days
  • • sweat
  • • 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 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
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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.

Soft Top Layer

Top Layer

Smooth and comfortable liner in swimsuit fabric.

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Teen Period Swim Bikini Bottom

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4.4
Rated 4.4 out of 5 stars
Based on 229 reviews
Total 5 star reviews: 165 Total 4 star reviews: 34 Total 3 star reviews: 10 Total 2 star reviews: 7 Total 1 star reviews: 13
87%would recommend this product
ComfortRated 4.4 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
EffectivenessRated 4.4 on a scale of 1 to 5
Write a Review (Opens in a new window)
229 reviews
  • Rated 1 out of 5 stars
    3 minutes ago
    Why take the risk of purchasing is no way to return or exchange? Wasted $38 for these

    Bought these for my teen and they are 1) so low waisted, who wants low rise on their cycle? 2) not so much a SHORT which she wanted for modesty and peace of mind on period but they are like a cheeky underwear 3)they ride up in the thighs when you walk. Of course they don’t allow refunds or exchanges so now I’m going to try to resell or find someone to share with. I seriously regret this purchase.

    Kristen A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Nice material

    They have not been used yet but the material is great and feels very durable

    Rebecca G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    peroid short review

    Were very good for swimming lessons and for spending a whole day at the beach

    Emily G. G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Great!

    My kids love these.

    Lia D.
    Verified Buyer
    Was this helpful?
  • Rated 3 out of 5 stars
    4 months ago
    Bit tight for sleepwear

    More like underwear

    Tara T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    A must for tween girls

    My girl is small so it’s hard to find period anything that fits. This fits her perfectly and provides great coverage. It is not bulky at all either. Will buy more.

    Len d. C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Amazing

    We love these!

    Roxanne K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    Go To Period Swim Short

    Love these swim shorts and mostly use them under board shorts. Never had a leak and never missed a day of water sports due to my period but I do plan well.

    Mihal L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    Great coverage no leakage

    Absolutely great for my daughter. This is a no brainer for girls and women these days! Girls can feel secure and comfortable without worrying about tampons all summer long.

    Stephanie M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    Swim short for teens

    My grand daughter loves them. The fit is perfect.

    Ruth B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    Great, comfy and good coverage

    Thick material, good bathing suit

    Love the pattern

    Carolyn W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 months ago
    My daughter likes them

    They seem to work pretty well and allow her to keep swimming even during her eriod, she finds them comfortable,

    ROSE R.
    Verified Buyer
    Was this helpful?