The Down ear warmer features a water resistant nylon shell and a inner soft liner that offer a great outdoor look and provide comfort and warmth. Patented behind-the-head design fits comfortably over your ears and allows them to be worn with other headwear, glasses, and head protection. Adjustable click-to-fit frames ensure an easy, comfortable fit on a wide variety of head sizes. They also collapse for easy storage in bag, briefcase, purse or pocket!.