The Hypalon Footcup provides you with a stable place to put your feet while whitewater rafting by simply stitching to the raft floor material. Whitewater Designs places extra reinforcement webbing on the inside corners where the arch strap attaches to the base - where the stress is greatest. Hypalon Footcups allow rafters a stable place to put their feet, leaving their hands free for paddling. The boots closed end makes it impossible for a foot to slip through coming in handy when paddling with children. The boot is stitched to raft floor material and reinforced with 1 in poly webbing around the base and 1.5 in webbing over the arch.