SF AF1 PRM sneakers Updated to beat the elements, the Nike SF Air Force 1 continues to draw inspiration from the military aesthetic. Ballistic nylon and nubuck combine to form the upper, while a sherpa fleece lining helps keep feet warm in cold conditions. The high-top shaft conceals a stash pocket and is tooled with adjustable straps, rope laces and a multi-loop counter system. A Nike Air unit is encapsulated in the gum rubber outsole, finishing the rugged shoe with a heritage hoops vibe. Imported Composition Sole: Rubber 100% Lining: Cotton 100% Outer: Nylon 100%, Polyurethane 100%, Canvas 100%