Lightweight and compressible, the Sitka Kelvin Lite Vest features PrimaLoft® Silver Hi Loft insulation in the body and lighter insulation under the arms for great temperature regulation. Wear as an outer-layer or under a shell to provide necessary core warmth. Features of the Sitka Gear Big Game Subalpine Kelvin Lite VestQuick DryHigh Heat-To-Weight RatioHi-Loft Insulation in BodyDurable Water Repellent Finish80 g/m2 PrimaLoft® Silver Insulation, Polartec& rec; Alpha® Active Insulation, Woven Polyester Shell, Woven Polyester Liner Sitka Gear Sitka-30044-SA-XXL