Top offer
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10% Off Select Products
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- Offer valid on all online purchases.
Current Thinx offers
Code
$10 Off Your Next Pair of Period Underwear Orders
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Get Thinx codes by email
Code
30% Off Select Items
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Code
10% Off Storewide
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- Offer valid for online purchases only. Cannot be combined with other promotions or discounts. Applicable to eligible items while supplies last.
10% to 20% off when you buy 3 or more eligible items
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- Source: Thinx's sale page
Free standard shipping on US orders of $125+
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- Minimum order: $125
- Source: Thinx's home page
Last Call Sale on select styles
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- Source: Thinx's sale page
Create a Set and save up to 10% when you but 3+ pairs at THINX
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$10 off $35 Student Discount at THINX
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Thinx at a glance
- Free shipping
- Over $125
- Returns
- 45 days
- Pay later
- Afterpay
- Discounts for
- Students
- Rewards program
- Thinx Rewards
- Ships internationally
- Yes
- Gift cards
- Yes
About Thinx
Thinx has sold reusable period underwear since 2013, with bladder-leak and teen styles under Thinx for All Leaks and Thinx Teens, in sizes up to 4X.
Buying 3 or more eligible items takes 10% to 20% off. All Thinx underwear can also go on an FSA, HSA or HRA card at checkout or via PayPal.
Thinx calls itself a family of brands focused on menstruation and incontinence, with a stated aim of making reusable, inclusive products while getting people to talk openly about periods and bladder leaks. Its underwear comes in cuts such as briefs, hi-waist styles, boyshorts, bikinis and thongs, and the range also includes shorts that have period underwear sewn in, 3-in-1 styles and multi-pack saver sets.
The company presents reusable underwear as a way to cut plastic waste from disposables, runs giveback programs aimed at access to period products, and publishes educational content through its Get BodyWise pages and The Periodical blog. Among the press recognition it cites is a place on TIME Magazine's list of top inventions of 2015. Thinx operates a warehouse in Northampton, Pennsylvania, and Thinx Rewards members earn points on purchases.
Past Thinx sales
- Last Call Sale Running when we read Thinx's site,
When shoppers look for Thinx coupons
Thinx coupon searches stay fairly even all year: July leads, February trails.
Does Thinx offer free shipping?
Yes. Standard shipping is free on US orders of $125 or more; smaller orders see the rate at checkout.
How long does Thinx shipping take?
Orders leave Northampton, PA within 1-2 business days, then take 5-7 days standard or 3-5 days priority.
What is Thinx's return policy?
You have 45 days to start in the online Returns Portal, and the items don't need to be shipped back.
Does Thinx have a student discount?
Yes. Thinx links to a student discount from its site, so check that page for the current amount.
More about shopping at Thinx
- Refund choices
- Pick an exchange of equal or lesser value, a digital gift card, or money back to the original payment in about 5-7 business days.
- Thinx Rewards
- The free program earns at least 1 point per $1 spent on thinx.com, redeemable at checkout, and points expire after 12 months.
- Referrals
- A friend gets $10 off a first order of $35+, and you earn 200 Rewards points worth $10.
- Gift cards
- Thinx gift cards never expire, though they can't be refunded once bought.
- International
- Thinx ships to 24 countries, including the UK, Canada, Australia and New Zealand, at courier rates set by country.
From Thinx's own pages, read Oct 22, 2026.
Sources: Thinx shipping policy, Thinx FAQ, Thinx website, Thinx rewards page, Thinx referrals page, Thinx sale page
How to use a Thinx coupon
- Thinx uses a Shopify checkout, where the order summary holds the discount box.
- The multi-pack deal of 10% to 20% off when you buy 3 or more eligible items is posted on the site, and the Last Call Sale covers select styles.
- A referred friend's $10 coupon needs a first order of $35+ and can't be combined with other promo codes, so compare it with the multi-item discount on a bigger cart.
- Rewards points also redeem at checkout.
- If you're paying from an FSA or HSA account, use that card at checkout or through PayPal, since Afterpay can't take it.
More ways to save at Thinx
- Sets work well at Thinx, because items from a Saver Set or Custom Set can be returned or exchanged one at a time.
- Thinx Rewards adds at least 1 point per $1, and each referral earns 200 points once a friend orders.
- A Thinx gift card never expires, which makes it a safe gift for someone still deciding on sizes.
- Final sale items, merch and gift cards can't be refunded, so read the tag before buying from the Last Call Sale.
Thinx questions, answered
Can Thinx be paid for with an FSA or HSA card?
All Thinx underwear is eligible for FSA, HSA or HRA cards, used at checkout or through PayPal. Afterpay doesn't accept those funds.
Do Thinx returns have to be mailed back?
Returns started in the Returns Portal within 45 days don't need the items shipped back. Final sale items, merch and gift cards can't be refunded.
How much is the Thinx referral discount?
A referred friend gets $10 off a first order of $35+, and that coupon can't be stacked with other promo codes.
When do Thinx Rewards points run out?
Points expire after 12 months. You earn at least 1 point for every $1 spent on thinx.com.
How many countries does Thinx ship to?
Thinx ships to 24 countries, including the UK, Canada, Australia, New Zealand and much of Europe, with courier rates by country.
Can items from a Thinx set be returned separately?
Pieces from a Saver Set or Custom Set can be returned or exchanged one by one.