SOFT PLUSH MATERIAL: Winter warmers ear muffs is made of elastic fleece fiber. There are three layers of fabric enhance the thermal effect that has a double effect of keeping warm and moistening skin. ADJUSTABLE SIZE: The elastic earmuffs are 58CM/22.8" long and 10.5CM/4.1" wide. It has a good stretch and a velcro opening so is suitable for a head circumference of 50-60cm, which is suitable for most different head girths. REFLECTIVE DESIGN: Reflective pattern design on the side makes using ear covers person safer to nocturnal at night. Perfect for jogging, running, yoga, hiking, biking, skiing and other winter indoor and outdoor sports. WIDER AREA: The extended area of the headband covers the whole ear from the cold wind. It can snug fit over your ears and stay in place. Even when you're exercising or sleeping, it won't slip off. WARM GIFTS: Plush earmuffs add a ray of sunshine to a cold winter day. It's the perfect gift for family, elders, colleagues and classmates during the days of Christmas, Halloween, Thanksgiving, Easter, birthdays, parties and anniversaries.