Sleeveless Blanc. Super lightweight vest that always warms up with 200g Primaloft Black. In addition, it is made from Ultratech Superlight with a 2000mm diaphragm, so it's not surprising. Just watch your sleeves. SPECIFICATIONS: UltraTech superlight 100% nylon outer C6 water repellent material treatment membrane (2.000mm water resistance, 2.000gm breathability) insulation: Primaloft black 200g lining: 100% nylon taffeta ykk zippers