Classic Bomber: 5.5 oz.; Shell: 100% Recycled Polyester with PVC coating; Lining: 100% Recycled Polyester satin with 70 gsm insulation in body and; Vegan Leather Bomber: 10.6 oz.; Shell: 100% PU; Backing: 100% Rayon; Lining: 60% Cotton, 40% Polyester; Sleeve lining: 100% Polyester; Polyester fiber in this blend is made from recycled content including plastic bottles. ; Recycled poly helps reduce water usage, energy consumption and CO2 emissions when producing this garment.; Medium fill for year-round wear; Rib-knit banding at collar, cuffs and hem; Utility pocket on sleeve; Premium YKK zipper; Retail fit, unisex sizing; Threadfast is a proud member of the Better Cotton Initiative (BCI). Cotton products from Threadfast support more sustainable cotton farming. Better Cotton is sourced via a system of mass balance.