Frequently Asked Questions

Orders & Shipping

I’ve already submitted my order, but I need to make a change! What do I do? Is it too late?
We process our orders quickly (so you can get your undies fast!), but we will do our best to accommodate any requests you may have. The best way to adjust or cancel an order is to email or call us at (917) 819-8171.
When can I expect to receive my order?
For standard shipping, your order should ship within 1-2 business days (Mon-Fri, before 2 pm), and arrive within 5-7 business days. For expedited shipping, your order should arrive in 3-5 business days (continental U.S. only). If you pre-ordered an item, the shipping date was indicated when you placed your order.
What is your return policy?
Not loving your undies? No worries — we process returns and exchanges within 60 days of purchase, no questions asked (not valid on final sale items, tampons, merch, or gift cards). We will also provide you with a free pre-paid return label. You can request a return or exchange via

If your order qualifies for a return, ...
I live abroad. Can I still order Thinx (BTWN)?
Yes! We offer international shipping so everybody can have the most innovative period solutions.
Does Thinx (BTWN) cover taxes, duty, etc. for international customers?
Unfortunately, our prices don't include local taxes, duties, brokerage fees, VATs, or any other stuff you may be additionally charged to receive your Thinx (BTWN) shipment internationally.

Make sure you consider *all fees* before you place your order because you’ll be required to make those payments when your shipment arrives, and we won’t be able to refund you if you change your mind.
What currencies do you accept?
We love our friends from all around the world, which is why we accept nearly all local currencies. On the off chance we do not accept your local currency, you’ll have the option of checking out in USD, CAD, EUR, AUD, or British Pounds.
I'm having trouble placing my order on your website. Help!
While we do our best to ensure that our e-commerce experience is consistent, enjoyable, and functional across all modern browsers and devices, occasionally something small may not function properly on older browsers when an update to our code is pushed.

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What is a Custom Saver Set?
Custom Saver Sets are a great way for you to stock up and save. Mix and match any styles, colors, and sizes across all our brands (Thinx (BTWN), Thinx and Speax) to take advantage of the following discounts:
  • Buy 3+ pairs and save 10%
  • Buy 5+ pairs and save 15%
  • Buy 7+ pairs and save 20%
This discount will apply automatically in your cart and only applies to full price styles. You can return the items individually if they don’t work out. Fresh Start Period Kits are not eligible for a Custom Saver Set discount.
Can I return or exchange 1 or 2 pairs of underwear from the Fresh Start Period Kit?
The Fresh Start Period Kit is sold as a unit, so you can't return or exchange individual pairs of undies from it — but you can return or exchange the whole kit, no questions asked.
What type of payment do you accept?
We are a cash-free establishment and accept all major credit cards. Thinx gift cards can only be used for online purchases.