One size fits most adults Head circumference:52cm/19.68"(Flexible, Elasticity suitable for the majority of people's head)，Beard Head knit beard caps combine the comfort and warmth of a traditional knit cap with the amazing styling of having a massive beard and moustache growing on your face What person could pass up the incredible opportunity to sport his or her very own beard We know we couldn't They are perfect for skiers, snowboarders, sports fans and people who enjoy all types of outdoor activities. The unique design of the Beard Head allows your entire face to remain warm, even in the harshest weather. Your chin, cheeks and upper lips will thank you as the Beard Head keeps them toasty warm.