Waterproof & Windproof: Hat outer shell is made of water repellent nylon fabric, easy to make rain and snow falls quickly, keep you dry and well protect you against the cold in extremely chilly daysWarm & Comfortable: Hat with fleece inner lining brings you cozy and warm feeling, lightweight, durable, and warm for fall and winter.Adjustable Fit: The back of the hat has adjustment hook and loop straps and elastic cord design,which can adjust the tightness according to the personal head circuference. A string adjuster to snug up the flaps if needed on a windy or particularly cold day for ears warmer. Best fit for the head circumference: 55-59cm (21.6"-23.2")Earflap Protection: The extended earflap design enables your ears to be fully covered and warmth in the cool fall and winter seasonPerfect head gear for outdoor activities such as running, walking, bicycling, skiing, snowboarding, hiking, hunting, and trappingunisex waterproof baseball cap is made of polyester. Full fleece inner lining delivers all-day warmth. Best fit for :21.6"-23.2"(55cm-59cm).Great for outdoor activities such as running, cycling, skiing, snowboarding, hiking, hunting, and any more others.