




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.
Designed for everyday comfort during your cycle, these briefs pair a luxurious fabric blend with practical protection. The main fabric combines SUPIMA cotton with TENCEL Modal for a soft, breathable feel that remains gentle against the skin. The subtle brief cut delivers a secure, feminine silhouette you can wear under jeans, dresses, or athleisure. Black with delicate lace adds a quiet, elevated look you can feel good about.
The internal core is built to manage the flow equivalent to up to 12 regular tampons, with the capacity to handle up to 3 regular pads’ worth of liquid. This design aims to keep you comfortable from morning meetings to evening plans. Individual results may vary, depending on personal flow and activity levels.
LeakSafe technology provides reliable protection for as long as you need — up to 12 hours of protection in a single wear. The underwear can serve as a full replacement for disposable products or as a dependable backup to tampons or menstrual cups, depending on your day’s demands.
The fabric moves with you, offering a discreet, regular-underwear feel while delivering built-in protection. The design is PFAS-free and eligible for FSA/HSA plans in many regions, making it a practical option for daily wear and travel.
Since 2013, THINX has focused on sustainable solutions for menstruation and incontinence, championing inclusivity and open dialogue. The black with lace option blends style with comfort, offering a dependable piece for your period wardrobe without compromising on look or feel.
Q: How much absorbency does Thinx Ultra-Soft Brief-Style Underwear provide?
A: It holds up to the equivalent of 12 regular tampons, depending on flow.
Q: Are these underwear reusable and easy to care for?
A: Yes—these are reusable, machine-washable underwear designed for long-term use.
Shipping (UK)
Returns & Refunds
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