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Fresh start period kit with three styles and color underwear
Illustration of a pair of Thinx (BTWN) underwear
Threee girls lying on grass.

Welcome to
Thinx (BTWN)

Our best-selling Fresh Start Period Kit — fit for stars! Shop our Stars Combo, featuring our absorbent styles.

Who says you can’t feel like a star on your period? Our new Lucky Stars print lets them bring out their inner VIP energy – and stay fresh and dry. Shop Lucky Stars in our absorbent styles now. 🎸

Reusable underwear that absorbs their period, so they don’t have to worry about leaks getting in the way of living their life!

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Welcome to
Thinx (BTWN)

Fresh start period kit with three styles and color underwear Young teen holding a pair of Thinx (BTWN) underwear Three girls lying on grass.

Our best-selling Fresh Start Period Kit — fit for stars! Shop our Stars Combo, featuring our absorbent styles.

Who says you can’t feel like a star on your period? Our new Lucky Stars lets them bring out their inner VIP energy – and stay fresh and dry. 🎸

Reusable underwear that absorbs their period, so they don’t have to worry about leaks getting in the way of living their life!

How do they work?

Thinx (BTWN) are period underwear designed with our absorbent, patented gusset that holds up to 4 regular tampons’ worth.

Learn more

Try Thinx (BTWN) for 60 days and if they don’t help you period better we’ll give you a refund — no questions asked!

FAQs

( Q )
Are Thinx (BTWN) reusable?
( A )
Yes! Our period underwear is washable and reusable. Plus, they’re easy to wash, and when cared for properly can last up to 2 years.
( Q )
Are Thinx (BTWN) a replacement for other period products?
( A )
On light days, wear Thinx (BTWN) instead of pads and panty liners. On heavy days, wear ‘em as a backup to other products for extra protection.
Got more Qs? We’ve got you covered.
More FAQS