The Men's Choko EXR Nylon Racing jacket has an outer shell made of waterproof, breathable 400 denier SUPPRATECH rugged oxford with a Teflon protective finish, technically coated for a softer feel. The lining is made of 100% nylon quilted to 180 gr. DuPont Thermolite Micro insulation. This jacket has an adjustable bottom, cuffs, and cummerbund, double storm flap protection, soft and comfortable fleece lined collar, zippered underarm vents, zippered outer shell pockets lined with brushed cotton for warmth and waterproofed for durability.