




We offer free standard shipping to every province and territory in United Kingdom.
We offer free standard shipping to every province and territory in United Kingdom. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to United Kingdom’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
Thinx presents a buttery-soft underwear experience built around a luxury cotton blend that combines SUPIMA Cotton with TENCEL Modal. The fabric feels smooth against the skin and moves with you, making your period days feel calmer and more comfortable. The black fabric is finished with subtle lace for a touch of style you can wear with confidence.
The built-in core is designed to hold up to the equivalent of 12 regular tampons’ worth of flow, while the extra absorbent layer can manage up to 3 regular pads’ flow. Paired with theLeakSafe barrier, you get ongoing protection from morning through night, helping you go about your day with less worry.
Designed to feel like regular underwear, these briefs blend comfort with built-in protection. The fabric is soft, flexible, and designed to move with you—without sacrificing coverage. They’re PFAS-free and eligible for FSA/HSA, aligning practicality with everyday needs.
Use Thinx as a full replacement for disposable period products, or as a dependable backup to tampons or cups. Ideal for travel, workouts, or evenings out when you want one less item to manage. The all-black palette with lace delivers a stylish option for your wardrobe.
Reusable, easy to care for, and built to be part of a longer-lasting solution for menstruation. This brief-style design from Thinx invites you to experience a sustainable approach to period wear while enjoying everyday comfort and discreet protection.
Q: What makes Thinx Ultra-Soft Brief-Style Underwear different from regular underwear?
A: A buttery-soft cotton blend with a built-in leakproof core offers comfortable everyday wear and reliable protection.
Q: How long can these underwear be worn and how should they be cared for?
A: They provide up to 12 hours of protection, depending on flow, and are reusable after washing.
Shipping (UK)
Returns & Refunds
Thanks for subscribing!
This email has been registered!