50 Cm Long Tube That Is Nice And Light, Will Wick Moisture In The Summer And Keep You Warm In The Winter. Folds Into A Hat, Bandana, Skull Cap, Head Band Etc. Made From Edz All Season Base Layer Material (A Performance Polyester) Works Across A Wide Range Of Temperatures, Wicks Moisture And Dries Fast. For Both Summer & Winter. Lightweight & Versatile Insulates In Colder Temperatures Cools In Warmer Temperatures Wicks Away Moisture