The Yamaha Long John & Jacket combination is the neoprene must have for every PWC owner. 2mm full stretch neoprene gives you freedom of movement and keeps you warm. And if it becomes to hot, you can always take your jacket of while being out on your PWC. Both pieces have a durable flatlock stitching to prevent irritations on the skin. And the Long John comes with a breathable liner in the back of the knees and kneepads for added protection. The perfect replacement for your normal wetsuit while offering all the benefits.