Our Gen II Stalkers are a substantial upgrade from the originals. They are made from the finest coyote brown Polartec fleece fabric. The new sole is composed of 100% Sutherland felt fabric in combination with a polartec thermal pro lining on the bottom. The side lacing mechanism is stamped from a very durable 16 gauge rubber mat and finished off with 3 lacing grommets. The new stalker weighs in at 12.9 oz per pair.