100% cotton, knitted exclusively for HebTroCo in the UK. Cooler than wool so perfect for warmer weather. Your first choice for wearing at the barbecue, beach and picnic. Black with mustard and white stripe. Cotton will stretch with constant wear, but if you leave for 48 hours or put in the drier it will return to the original size. Hand wash only. Cotton Knit Hat / Black & Mustard