100% Cotton 100% cotton fabric, skin-friendly, breathable and comfortable for all day wearing. Adjustable strap suitable for all kinds of head shapes and hairstyles, one size fit all. Friendly for use in deferent industries as scrub hat, bleach driendly hat, chef cap, sanitary hat, beauty spa cap, chemo hat, cleaning caps for hair loss etc. Built-in sweatband across the front end, made of towel cloth to keep your forehead dry and comfortable for long time wearing. Return Replacement Guarantee- Email Contact us whenever you need for return or replacement.