First Serve Sport Dress

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First Serve Sport Dress

Name: First Serve Sport Dress
Brand: Knixteen Canada
Price: 88.0 USD
Availability: InStock

$88.00 USD

Buy 3+ SAVE 15%, Buy 5+ SAVE 20%

Built-in shelf bra

Quick dry performance fabric

Built-in breathable shorts

Absorbs about 1 regular tampon

Mix, Match & Save

First Serve Sport Dress

$88.00 USD

Buy 3+ SAVE 15%, Buy 5+ SAVE 20%

Built-in shelf bra

Quick dry performance fabric

Built-in breathable shorts

Absorbs about 1 regular tampon

Absorbency: Light

Size:

True to Size

•

FREE Shipping on orders $70+

Return Policy

Body: 80% Nylon, 20% Spandex; Built-in Romper: 73% Nylon, 27% Spandex; Interlining: 90% Polyester, 10% Spandex; Fresh Fix Technology® Gusset/Soufflet: Gusset 1: 84% Modal, 8% Seaweed/Algue, 8% Spandex; Gusset 2: 96% Polyester, 4% Spandex; Gusset 3: 89% Polyester, 11% Spandex, Coating: 100% Polyurethane coating; Exclusive of Decoration

Additional Product Ingredient Information

• 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

FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Absorbs about 1-3 regular tampons worth of liquid.

Soft Top Layer

The carbon cotton gusset layer gently wicks away moisture from your skin, keeping you feeling fresh and odor-free.

Leakproof Layer

Your questions, answered.

How do I wash them?

Easy! Here's all you need to know:

Give them a quick rinse under cold water first. Then toss them in the washing machine, with like colors for activewear, on cold with a mild detergent. No softener or bleach. For drying, it depends on what you've got: lay flat to dry for medium absorbency underwear and all activewear, or tumble dry on low for high to super absorbency underwear. That's it, no ironing needed!

How does the leakproof technology work?

Our patented leakproof tech is built right into the liner of our period underwear and activewear, and it does a lot of heavy lifting in a seriously thin package. Three super thin layers work together to wick away moisture, absorb blood, sweat, and discharge fast, and keep everything locked in so nothing leaks out. The result? Your teen can squat, sprint, stretch, and move however they want, no peek-a-boo tampon strings, no bulky pad seams, no worrying about leaks.

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.

Do I need to wear a pad or tampon as backup?

Honestly, that's for your teen to decide, they know their flow and comfort level better than anyone. But here's a general guide:

The Leakproof Active Legging and Leakproof Active Short both have a built-in liner with the holding power of 2 super tampons, so many teens wear them on their own without any backup.

For the Leakproof Leotard and Leakproof Tights, we recommend pairing them with a tampon or menstrual cup on medium to heavy days. On lighter days? They've got it covered solo.

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First Serve Sport Dress

First Serve Sport Dress

First Serve Sport Dress

Absorbency: Light Drop Drop Drop Drop Drop

Size and Fit Guide

Shipping

Shipping

Return Policy

Return Policy

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Built-in protection that feels like nothing at all.

Soft Top Layer

Leakproof Layer

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Your questions, answered.

How do I wash them?

How does the leakproof technology work?

What do the absorbency levels mean?

Do I need to wear a pad or tampon as backup?

Can I return my activewear?

Can adults wear Period-Proof Activewear?

Absorbency: Light