Do I still need to wear a tampon or cup with these?

No. The built-in absorbent gusset is designed to handle moderate period flow on its own, so you can swim without any insertable products. On very heavy days, you may want backup, but for most of your cycle these work independently.

How do I wash period swim shorts?

Rinse them in cold water as soon as possible after wearing to prevent staining, then machine wash with your regular laundry. Avoid fabric softener and bleach, which can reduce absorbency over time. Air drying extends the life of the absorbent layers.

Will these work in chlorine and saltwater?

Yes. The fabric and absorbent gusset are designed to withstand regular pool chlorine and ocean saltwater. Rinse thoroughly after swimming in either environment and wash as directed to maintain the material's integrity.

How is the fit different from adult period swimwear?

These are cut specifically for teen bodies, with adjustments to hip placement, rise, and leg openings rather than simply scaling down adult patterns. The result is a fit that sits naturally and stays in place for younger, more developing body types.

Teen Period Swim Board Shorts - Last Call

The 3-second version

Built-in absorbent layers handle moderate flow without tampons or pads
Full-coverage board-short cut designed for teen proportions
Quick-dry, chlorine-resistant fabric stays opaque when wet
Moderate absorbency only
Requires rinsing and washing after each wear
Mid-thigh length, not a brief cut

Why it's on GiftsFeed

Board shorts with built-in period protection for swimming

Most period swimwear asks you to still use a tampon or menstrual cup, or it's built into brief-style bottoms that don't move well for actual swimming. Board shorts solve both problems: the longer cut and elastic waist stay put through flip turns and wave breaks, and the absorbent gusset replaces insertables entirely for moderate days.

The teen-specific fit matters because these aren't just shrunk-down adult patterns. Hip placement, rise, and leg openings are cut for younger bodies, so the shorts sit where they should and don't gap or ride up. If you've been sitting out swim practice or beach days because of your cycle, this is the practical fix.

Good gift when

Teens who swim regularly and want protection during their period
Active swimmers looking to avoid disposable products in the water
Anyone preferring full-coverage bottoms with leak-proof peace of mind

Skip it if Moderate absorbency may not be enough on your heaviest flow days, and the board-short length and coverage won't suit those who prefer briefer bikini cuts.

Specs

Absorbency: Moderate
Coverage: Full coverage, mid-thigh length
Sizes: XXS, XS, S, M, L, XL, XXL
Colors: Seabreeze, Thistle, Violet, Pink Pop, Tropical Punch, Shady Blue, Ivy Bloom, Wave Pool, Poppy Petal, Marina
Care: Rinse in cold water after wearing, machine washable

What's included

One pair of board shorts with integrated period protection

If you're giving it

You'll need their size

Sizing required; consider including a gift receipt for exchange.

The details

These board shorts integrate period-proof technology into swim-ready fabric, so you can stay in the water through your cycle without tampons or disposable products. The built-in absorbent gusset handles moderate flow while remaining invisible under the relaxed board-short silhouette.

The shorts sit at a mid-rise and offer full coverage across the hip and rear, falling to mid-thigh. They're cut for teen proportions rather than scaled-down adult sizing, with a fit that moves with diving, surfing, or lap swimming. The exterior looks and performs like standard swim fabric—quick-drying, chlorine-resistant, and opaque when wet.

Leak-proof layers work by wicking fluid into absorbent material before it reaches the outer shell. Rinse in cold water after wearing, then machine wash. The shorts maintain their protection through repeated laundering and regular pool or saltwater exposure.

Available in ten colorways and seven sizes from XXS through XXL. The board-short design works as swim bottoms with any bikini or rash-guard top, and the coverage means no adjusting or tugging mid-activity.

Knix

Teen Period Swim Board Shorts - Last Call

Moderate-absorbency swim bottoms designed for teen bodies and active water days

$38.50$5530% offat knix.com

Choose an option

Quantity

Buy from Knix

Ships and sold by Knix. About this merchant

The 3-second version

Built-in absorbent layers handle moderate flow without tampons or pads
Full-coverage board-short cut designed for teen proportions
Quick-dry, chlorine-resistant fabric stays opaque when wet
Moderate absorbency only
Requires rinsing and washing after each wear
Mid-thigh length, not a brief cut

Cheaper alternatives

Questions

Do I still need to wear a tampon or cup with these?: No. The built-in absorbent gusset is designed to handle moderate period flow on its own, so you can swim without any insertable products. On very heavy days, you may want backup, but for most of your cycle these work independently.
How do I wash period swim shorts?: Rinse them in cold water as soon as possible after wearing to prevent staining, then machine wash with your regular laundry. Avoid fabric softener and bleach, which can reduce absorbency over time. Air drying extends the life of the absorbent layers.
Will these work in chlorine and saltwater?: Yes. The fabric and absorbent gusset are designed to withstand regular pool chlorine and ocean saltwater. Rinse thoroughly after swimming in either environment and wash as directed to maintain the material's integrity.
How is the fit different from adult period swimwear?: These are cut specifically for teen bodies, with adjustments to hip placement, rise, and leg openings rather than simply scaling down adult patterns. The result is a fit that sits naturally and stays in place for younger, more developing body types.