Primaloft Sport 40g/m2 Insulation: Warmest synthetic insulation material, warm even when wet. Extremely compressible. Formotion: Ultimate performance and comfort while in motion. Security chest pocket + two zip hand pockets. Adjustable draw cord at hem. Weight: 9 oz, 265 gram. Athletic fit. 100% Polyester, 91% nylon/9% Elasthane.