DHa RCO Cotton Back Cap It's Cotton If your head is cold, it's time to cover it up with a hat. The DHa RCO Cotton Back Cap has a panelled design and is made from twill cotton. It features an adjustable back strap, eyelets for ventilation, and fits a wide range of head sizes. Features Twill cotton for comfort and durability Adjustable back strap so you can dial in the proper fit Sizing: 55 - 60cm circumference | Dharco | Cotton Back Cap In Hunter Unique