Product description【ALL ROUND MATERIAL 100% Polyester】 It is convenient to wear, carry, wash and keep. The internal double-layer sponge is designed to keep your ear warm better. 【EASY CARRY】 It could fit in small places like your pockets or bags. 【FOR ANY OCCASION】 It can be widely used. It suits for various occasions such as daily commuting, shopping, running, skating, hiking, camping and all outdoor activities in the winter. 【DESIGNED FOR ULTIMATE WARM】 It almost sticks to the skin so that minize the gap and maximize the warmth/ Flexible enough to fit most people, strong steel wire shape makes it not slip off easily. 【90 DAY MONEY BACK GUARANTEE】If you are unsatisfied with this product for any reason, please contact JJST Service Team and trust us, We will solve your problems within 24hrs.Department: Unisex-adultPackage Dimensions: 6.54 x 6.06 x 3.31 inches