The Boone Kayak bag is insulated and most important is the only bag on the market that has heat sealed seams. This prevents your brine solution from leaking and contaminating the bags’ insulation. Once contaminated, it is impossible to get the odor out of the bag. All Boone kill bags are heat sealed. The kayak bag is made with six tie downs, two handles and webbing that are heat sealed to bag for superior strength. The kayak bag has a screw cap drain and bag material is 1000 denier vinyl with nylon fibers for added strength.