PREMIUM WARM: very comfortable warm fleece material, with ear full covered to keep the cold air out of your ears. whether youre working out or hanging out, youll love the warmth and performance stretch of this fleece headband. STRETCH TO SIZES: this headbands is stretchy on all line sides to fit a wider range of head sizes, suitable head circumference is 22 for most adult, men and women, with or without helmets or hats.Casual Size: one size for head circumference: 52-60cm/20.5-23.62 for most adults men and women. COZY NON-BULKY: the head sweat band is very soft, stretch but not bulky and losing shape, will just stay put when you are running. WASHABLE DURABLE: this earmuff is washable, very nicely made, no extra strings or unsewn pieces, durable for years. FIT FOR: this headwear is good for running, cycling, jogging, casual walk and different outdoor activities in cold weather. Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you