We built the Klimate Bib to excel in long days blasting through the woods and across frozen lakes. Now with improved insulation, integrated safety features, and added durable overlays you get comfort and peace of mind for full seasons of trail riding. GORE-TEX Performance Shell Technology - 100% percent waterproof, windproof weather protection that breathes that allows interior moisture to escape while keeping exterior water out. Highly-breathable, built-in reflectivity offers added athletic comfort. 3M THINSULATE INSULATION - Synthetic insulation/Isolate helps keep heat in and cool out providing extra warmth with durability - Legs 220G, Bib 100G KLIM Exclusive Dry Seat Technology - Extra durable, completely waterproof technology exclusive to KLIM that keeps your seat from soaking through.