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Back to School Essentials Kit

Home / Back to School Essentials Kit

Best Savings

Back to School Essentials Kit

$139.00 USD

$174.00

20% off

Our best-selling leakproof styles

Includes optimal overnight protection

Machine washable

Back to School Essentials Kit

Back to School Essentials Kit

Back to School Essentials Kit

Back to School Essentials Kit

Best Savings

Back to School Essentials Kit

$139.00 USD

$174.00

20% off

Our best-selling leakproof styles

Includes optimal overnight protection

Machine washable

See Details

| Shady Blue

Period Swim Sport One-Piece Kit*

Color: Shady Blue Limited Edition

Size:

| Black

Light Leakproof No-Show Underwear Boyshort Kit*

Color: Black Limited Edition

Size:

| Black

Leakproof UltraThin No-Show Underwear Boyshort Kit*

Color: Black Limited Edition

Size:

| Red Tulip

Super Leakproof® Sleepover Short Kit*

Size:

| Green

Wash Bag

Size:

FREE Shipping on orders $80+

Return Policy

Consider this their back-to-school confidence kit.

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 2-3 regular tampons.

1 pair of Light Leakproof Underwear Boyshort

Absorbs about 1-3 regular tampons

1 pair of Leakproof UltraThin Underwear Boyshort

Absorbs about 2.5 super tampons

1 Super Leakproof® Sleepover Short

Absorbs 4-7 super tampons worth of liquid—perfect for overnight protection and heavy flow days

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.

Product Description

From swim class to sleepovers—and every hallway walk, lunch break, and extracurricular in between—four pairs of bulk-free, no-one-will-know Leakproof keep them confidently covered, no matter what's on their schedule.

Leakproof Essentials

Featuring everything they need for their packed agenda and their period.

Comfy and Confident

Our signature buttery-soft fabric is designed to be invisible under clothing, including leggings, so they don't need to worry about panty lines or leaks.

Easy to Wash

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

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.

Light Leakproof No-Show Boyshort

Body: 77% Nylon, 23% LYCRA® XTRA LIFE™ Spandex Fresh Fix Technology® Gusset: Gusset 1: 86% Cotton, 10%, Spandex, 4% Carbon; Gusset 2: 85% Polyester, 10% Elastane, 5% Polyurethane

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 Boyshort

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.

Super Leakproof® Sleepover Short

Body: 70% Nylon, 30% Spandex

Lining: 86% Modal, 8% Seaweed, 8% Spandex

Gusset: Leakproof Technology®, 100% Polyester, PU Film

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.

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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.