Backpack Survival Kit - Boyshort

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Backpack Survival Kit - Boyshort

Name: Backpack Survival Kit - Boyshort
Brand: Knixteen Canada
Price: 58.0 USD
Availability: OutOfStock

$58.00 USD

$71.00

Choose your colors

Our best-selling, everyday leakproof styles

Discreet, no-show looks

UltraThin absorbs about 2.5 super tampons’ worth

Super Leakproof absorbs about 4-7 super tampons’ worth

Machine washable

Best Savings

Backpack Survival Kit - Boyshort

$58.00 USD

$71.00

Choose your colors

Our best-selling, everyday leakproof styles

Discreet, no-show looks

UltraThin absorbs about 2.5 super tampons’ worth

Super Leakproof absorbs about 4-7 super tampons’ worth

Machine washable

See Details

Super Leakproof® No-Show Boyshort Kit*

Size:

Leakproof UltraThin No-Show Underwear Boyshort Kit*

Color: Black Limited Edition

Size:

Travel Bag

Size:

FREE Shipping on orders $80+

Return Policy

Carry this leak-saving period essential with you everywhere you go.

This Kit Includes:

1 pair of Super Leakproof Underwear Boyshort

Absorbs about the same as 4-7 super tampons

1 pair of Leakproof UltraThin Underwear Boyshort

Absorbs about 2.5 super tampons

1 Travel Bag

This cute, reusable pouch features two compartments: a sealed, wet section for worn underwear and a dry section for clean. Compact, waterproof, hand‑washable, and holds up to 7 pairs of undies.

Product Description

Two pairs, one take-it-anywhere bag, one big boost of confidence. This is the kit your teen will need to go throughout the school day without leaks and without worries.

Leakproof Essentials

UltraThin Boyshort absorbs 2.5 super tampons worth of liquid: perfect for moderate flow days, light bladder leaks, and sweat. Super Leakproof Boyshort absorbs about 4-7 super tampons worth of liquid: ideal for heavy flow days, overnight protection, and light bladder leaks.

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.

Worry-Free Protection

Patented 360 LeakSeal™ technology locks in leaks at every edge.

Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage. Designed specifically for teens and tweens, so may fit smaller than styles made for adults.

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

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

Super Leakproof Boyshort

Body: 70% Nylon, 30% Spandex Gusset 1st Layer: 84% Modal; 8% Seaweed; 8% Spandex Gusset 2nd Layer: 100% Polyester Gusset 3rd Layer: Fresh Fix Technology® Gusset 4th Layer: Polyurethane Film

• 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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Backpack Survival Kit - Boyshort

Backpack Survival Kit - Boyshort

Backpack Survival Kit - Boyshort

Super Leakproof® No-Show Boyshort Kit*

Size and Fit Guide

Leakproof UltraThin No-Show Underwear Boyshort Kit*

Size and Fit Guide

Travel Bag

Size and Fit Guide

1 pair of Super Leakproof Underwear Boyshort

1 pair of Leakproof UltraThin Underwear Boyshort

1 Travel Bag

Zoom

How to Choose?

Heavy

Light

Moderate

Ultra

Easy to Wash

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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?