seals splash deck, xl black one size seals designed for paddlers who do not require a fully closed cockpit. great for calm paddling conditions, it keeps the interior of the kayak more cool and comfortable on warm days while also keeping paddle drip off your lap.use the to determine the size of your kayaks cockpit. sizing: splash deck fits seals cockpit sizes 1.2 thru 4.2. splash deck x fit seals cockpit sizes 5 thru 7. see sealsskirts website for a complete size chart.