The NRS Super Stretch Neoprene Cockpit cover stretches over your kayak's cockpit to keep out weather, debris and critters. Super stretchy neoprene and an adjustable shock cord make it a snap to install on any kayak. Two sizes fit all! The stretchy, adjustable Stretch Neoprene Cockpit Cover fits a huge range of kayak cockpit sizes. Just choose large or small. Smooth-skin 1 mm neoprene sheds water and resists abrasion for long-lasting protection. The shock cord band adjusts to snugly fit your kayak's cockpit combing. Tying a simple knot is all it takes! Important Note: When placing cover on cockpits at the upper end of the two size ranges, it can be a tight fit. Leave the cover on the boat for at least 24 hours to let it stretch a bit and it should be easier to put it on the next time.