These cloth sanitary pads (often called CSP) are made of with a top layer of comfortable, super-soft bamboo charcoal fleece which sits closest to your body. There's an absorbent inner layer and a hidden waterproof layer that's made from breathable PUL.The poppers mean your pads stay firmly in place so that slips and leaks are a thing of the past.This extra large set is 30x23cm (with wings). The main pad is 9cm wide. It's ideal for overnight if you have a heavy period, and can be used post-partum. Reusable sanitary pads are a bit like reusable wipes - once you've tried them you'll wish you'd swapped earlier.Please note -for hygiene reasons, refunds cannot be accepted