Celsius Zone Insulated Cold Weather Bibs 100% Nylon Tactel Imported Zip up to knee for extra mobility Outdoor weather Parka with Zone Insulation to provide extra warmth where needed. Waterproof and breathable Chest to crotch features 150 grams, crotch to knee feature 200 grams and knee to ankle features 150 grams of insulation Zippered chest and rear pockets and dual cargo pockets Storm flaps over zippers