Made with 3 layers of soft-shell materials: 100% polyester woven fabric, TPU laminate film, 100% polyester backing. The softshell is 400GSM (11.75 oz), waterproof, and breathable. It passes both AATCC 35 and AATCC 127 for waterproof. Designed to wear as a stand-alone or as a liner. Zip closure hand warmer waist pockets. 2 zip closure inner pockets. Side vent equipment access zippers. Elastic hook and loop closure adjustable cuffs. Stand up collar for warmth. Epaulets across the top. All YKK zippers. Adjustable toggles at waistline. Designed to wear as a stand-alone or a liner in the 461 Responder Parka (has multiple loops to secure to outer jacket). California Prop 65 compliant.