Russell Outdoors Men's Apx L3 Gale Two Layer Soft Shell Vest 100% Polyester Imported Micro fleece inside traps air and keeps you warm Bonding used in key areas and zippers to eliminate bulk-bonding means no stitching, no seams to tear, reduces bulk and weight of garment Multi-directional stretch Extremely breathable while blocking wind without the use of a laminate Wind and Water resistant