9-ounce 88% Cotton/12% Nylon Twill - 100% Cotton Twill lining - Medium weight 100% modacrylic insulation - Storm Blocker Plus: Waterproof windproof breathable and seam taped - #1 durable Nomex two way concealed front zip with hidden snap closure and storm flap - Adjustable cuffs with hook and loop tabs - Interior right chest pocket - Patch pocket on left chest with zip closure and tool pockets on top with hook and loop closure - Patch pocket on left sleeve with hook and loop closure - Lower reach in pockets with zip closure - UL Certified to NFPA 2112 - ASTM F1506 - NFPA 70E - CAT 4