The North Face Radium Hi-Loft Jacket Men's G.I. Green/Forest Night Green L Exclusive Polartec&reg; low-density knit fabric minimizes weight and maximizes compressibility Summit Series&reg; collection is harness and pack-compatible bluesign&reg; approved fabric Fabric: Body: Polartec&reg; Thermal Pro&reg; 96% polyester, 4% elastane; Stretch Side Panels: Polartec&reg; Power Stretch&reg; Pro 53% polyester, 38% nylon, 9% elastane Weight: 439 g (15.5 oz)