HydrX coating 2,000mm/2,000g/m. Shell - durable nylon/polyester shell with HydrX coating. Lining FXR embossed nylon taffeta lining. Insulation 200g combined F.A.S.T./FXR Thermal Flex insulation value. F.A.S.T. - Advanced flotation assistant closed cell foam insulation system. Front zipper with placket/snap closure, side leg zipper with placket, 3M scotch lite reflective, adjustable fixed suspenders, adjustable waist system. Pre-curved knees, reinforced knee, instep and hem ,storm cuffs with boot lace retention snaps. Zip-off leg extensions.