Knickerbox UK Discount Codes & Promotions 10 October 2026

Enter your promo code in the promotional/discount code field during checkout. Only one code can be used per order, and it must be typed exactly as provided, including any prefixes, without spaces. Note that some items or collections may be excluded from promotions.

Yes, Knickerbox provides free UK Standard Delivery on orders over £50. For orders under £50, standard delivery costs £3.99. Delivery takes up to 3 working days via Royal Mail or InPost when you order before 6pm.

Sign up for the Knickerbox email newsletter to receive 20% off your first order. After subscribing, you'll get a unique promo code to use at checkout. The code must be entered exactly as shown, including any prefixes like 'WELCOME-', with no spaces.

You can return items to Knickerbox for free within 28 days of purchase or receipt. Items must be unworn, unwashed, and in original resaleable condition with all tags, labels, and hygiene seals intact. To start a return, book online via the Knickerbox Returns Portal to get a return method, such as an InPost digital QR code or ParcelShop drop-off.

Yes, Knickerbox offers a 15% discount for students and graduates, as well as young adults aged 18–26 and apprentices. You can verify your status through UNiDAYS or Student Beans to claim the discount. Additionally, a 15% Services Discount is available for Blue Light Card holders, NHS and healthcare workers, teachers, carers, charity workers, and British Armed Forces personnel.