Waterfowl Wading Systems Max-4 Breathable Bootfoot Wader with Relief Zipper Max-4 breathable bootfoot wader with full length relief zipper, 1000 gram Thinsulate boots with aggressive knobby sole Full length relief zipper, reinforced padded neoprene knees and a free wader belt included. We use only the highest quality breathable material with a durable Polyester outer using CaddisDry technology that allows perspiration through, but keeps water out. The seams are taped glued and stitched to make sure you stay warm and dry. Assembled in U.S.A.