The Nookie Cockpit Cover features a 3mm neoprene construction; it is then secured to the kayak via an 8mm shock cord that runs around the edge. This kayak cockpit cover comes in two different sizes and has a wide variety of uses. You can use it when the kayak is in transit, as it will reduce fuel consumption and also keep kit secure in the kayak. You can also use it when the kayak is in storage, as it will keep the creepy crawlies out.