Nathan Flurry is designed with Thinsulate insulation wrapped around a horizontal bottle holster plus zippered entry from either side equals the perfect pack for an hour of crosscountry skiing, running, snowshoeing, or snowboarding. Twin waistbelt pockets let you carry ski wax, snacks or sunscreen within easy reach. Dual XTS cradles Thinsulate insulated holster with dual entry zippers Twin zippered pockets on waistbelt Airmesh moisturewicking backing LimitedStretch elasticized