One-Piece Bestsellers Kit - Strawberry Shortcake

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One-Piece Bestsellers Kit - Strawberry Shortcake

Name: One-Piece Bestsellers Kit - Strawberry Shortcake
Brand: Knixteen Canada
Price: 125.0 USD
Availability: OutOfStock

$125.00 USD

$160.00

22% off

Best-selling leakproof styles

Moderate absorbencies

Comes with bag to store used items

Super easy to use

One-Piece Bestsellers Kit - Strawberry Shortcake

Best Savings

One-Piece Bestsellers Kit - Strawberry Shortcake

$125.00 USD

$160.00

22% off

Best-selling leakproof styles

Moderate absorbencies

Comes with bag to store used items

Super easy to use

See Details

Period Swim Sport One-Piece Kit*

Color: Fresh Fruit Limited Edition

Size:

Leakproof UltraThin No-Show Bikini 3-Pack Kit*

Color: Berry Blue/Berry Bliss/Blueberry Bloom Limited Edition

Size:

Wash Bag

Size:

FREE Shipping on orders $80+

Return Policy

For confident swims and carefree sleeps, with a best-selling swim one-piece and overnight protection in prints inspired by a childhood icon.

This Kit Includes:

1 Period Swim Sport One-Piece

A sporty one-piece style featuring removable cups and an open racerback for added mobility. Absorbs about 2 super tampons.

3 Leakproof UltraThin No-Show Underwear Bikini

Absorbs about 2.5 super tampons

1 Wash Bag

This handy wash bag helps keep your favorite styles lasting even longer. Just throw your items in, zip it up, and toss it in the washing machine.

Leakproof Essentials

Everything she needs to manage her period with confidence. Includes both leakproof underwear and swim, so she is covered from cabin to the waterfront. Made with buttery-soft fabric and looks just like regular underwear and swim.

Easy to care for

100% reusable and machine washable, just like regular underwear. Store in the included wash bag until laundry day or home time.

Machine Washable

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Lay flat to dry.

Fabric

Period Sport One-piece

Body: 85% Nylon / 15% Spandex; Lining: 85% Nylon / 15% Spandex; Gusset: Fresh Fix Technology®, Polyurethane Film

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Lay flat to dry.

Leakproof UltraThin No-Show Bikini

Body: 77% Nylon, 23% LYCRA® XTRA LIFE™Spandex;

Fresh Fix Technology®Gusset: Gusset 1: 86% Cotton, 10% Spandex, 4% Carbon; Gusset 2: 96% Polyester, 4% Spandex; Gusset 3: 83% Polyester, 11% Spandex, 6% Polyurethane

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Lay flat to dry.

• Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.

about 8-14 tsp
about 1.5-3 regular pads
about 4-7 super tampons
about 1.5-3 menstrual cups

• Ideal for lightest period days, spotting, sweat and discharge.

about 1-3 tsp
about 1-3 pantyliners
about 1-3 regular tampons
about 0.5 menstrual cups

• Ideal for medium period days, discharge and sweat.

about 4-8 tsp
about 1-1.5 regular pads
about 2-4 super tampons
about 0.5-3 menstrual cups

• Ultimate peace of mind. For the heaviest period days or overnight protection.

about 15-20 tsp
about 1.5-2.5 super pads
about 7-11 super tampons
about 2-3 menstrual cups

Easy to Wash

100% reusable and machine washable, just like regular underwear.

Your questions, answered.

How do I wash period underwear?

It's easy, we promise. Give them a quick rinse under cold water first, then toss them in the washing machine with your regular clothes, cold water, mild detergent, no softener or bleach. For drying: lay flat for medium absorbency styles, or tumble dry on low for high and super absorbency ones. That's it. No ironing needed!

What do the absorbency levels mean?

Heavy: Absorbs the equivalent of 4–7 super tampons. Great for overnight or the heaviest days when swapping into a fresh pair isn't always an option.

Moderate: Absorbs about 2.5 super tampons' worth. A solid go-to for medium flow days, discharge, and sweat.

Light: Absorbs about 1 regular tampon's worth. Perfect for spotting, lightest days, discharge, and sweat.

How does period underwear work?

All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in. Here's what's going on under the hood:

Layer 1 wicks away moisture and uses antibacterial technology to neutralize odors, keeping your teen feeling fresh all day.
Layer 2 is a super thin but seriously absorbent liner, depending on the style, it can hold the equivalent of 3–20 tampons or pads.
Layer 3 is a liquid-resistant outer layer that keeps everything locked in so leaks don't stand a chance.

Does my teen need to wear a pad or tampon with period underwear?

Totally up to them! Every flow is different, and there's no wrong answer. Depending on the absorbency level and how heavy their period is, they can wear KT undies on their own or use them as backup alongside a tampon or menstrual cup. Whatever makes them feel most confident is the right call.

Can I return my period underwear?

Because these are underwear, we can't take back worn pairs, but here's the good news: you can try one pair from your first order risk-free for 30 days!

Ordered the wrong size? We'll send a replacement pair at no cost, or give you a full refund within 30 days of delivery (excluding original shipping).

If your order had multiple pairs, just open and try one. Any unopened pairs from the same order are eligible for an exchange or refund within 30 days. And heads up, all sale items are final sale.

All Mystery Bundles are Final Sale.

Order summary

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One-Piece Bestsellers Kit - Strawberry Shortcake

One-Piece Bestsellers Kit - Strawberry Shortcake

One-Piece Bestsellers Kit - Strawberry Shortcake

Period Swim Sport One-Piece Kit*

Size and Fit Guide

Leakproof UltraThin No-Show Bikini 3-Pack Kit*

Size and Fit Guide

Wash Bag

Size and Fit Guide

1 Period Swim Sport One-Piece

3 Leakproof UltraThin No-Show Underwear Bikini

1 Wash Bag

Zoom

How to Choose?

Heavy

Light

Moderate

Ultra

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Your questions, answered.

How do I wash period underwear?

What do the absorbency levels mean?

How does period underwear work?

Does my teen need to wear a pad or tampon with period underwear?

Can I return my period underwear?