Waterfowl Wading Systems Max-4 Neoprene Bootfoot Waders – Max-4 Bootfoot waders are made of 3.5mm neoprene with a 600 gram Thinsulate Bootfoot. Featuring a front hand warmer pocket with storage will provide warmth and protection in even the most severe weather. Brand: Caddis Color: White Manufacturer Part Number: WFW10901W-9 Size: 9 Regular Manufacturer: caddis Model: WFW10901W-9 Shoe Size: US 9