It's no secret that layering helps keep us warm, but it's easy to end up feeling a little overstuffed in our effort to layer up. Our men's Midstream Insulated Vest features PrimaLoftA(R) Gold for the highest warmth-to-weight ratio available with synthetic insulation. The resulting thin profile and lightweight feel of this vest keep you moving and casting freely. It's finished with a smooth PertexA(R) face for wind resistance.PrimaLoftA(R) Gold insulation provides the highest warmth-to-weight ratio in synthetic insulationLightweight and wind-resistant PertexA(R) fabricHigh-loft insulation in body and sleevesZippered chest pocket; Zippered hand-warmer pocketsITEM #PG-12288FABRIC TECH: Face: PertexA(R) Microlight 30D 100% nylon ripstop; Insulation: PrimaLoftA(R) Gold 60 g in body; Liner: 30D 100% polyester; PertexA(R) Microlight