tsmertor extra thicker kayak seat cushion, waterproof kayak gel seat cushion for long sitting coccyx sciatica pain relief boat cushion kayak accessories pad for fishing canoe rowing stadium blue x-large is up for auction in Sports & Outdoors. The current bid is $1.50, 96% below the $39.88 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.