These snow bibs have a tough nylon shell that’s waterproof, windproof and warm. They're 4x more abrasion resistant than cotton duck with double-layer reinforcements at knees, cuffs and boot scuffs. 100% 3M™ Thinsulate™ insulation is quilted into the lining for lightweight warmth. The smooth taffeta lining won’t hang or bunch on whatever you’re wearing. These bibs are new with tags and have never been worn.