Waterproof PUL Cap This waterproof cap allows you to apply your hair color without using cling film or a disposable hairnet! The color of the lining may vary depending on the availability of the fabric.You can use this cap in 3 different ways: Waterproof side against hair: treatment application color application Cotton side (pattern) against hair: shower cap Composition: Outer: 100% cotton Inner: waterproof PUL Washing instructions: Machine washable at 30°C Tumble drying not recommended