This kayak is designed for Greenland rolls. The rear cockpit height of all four models has been lowered to allow advanced paddlers, who execute Greenland rolls, to lie back flat on the rear deck. She is thin and sleek, but retains very comfortable initial stability. She executes leaned turns beautifully and is very well behaved in wind and waves. Though this kayak is designed with the Greenland roll in mind, this is a great performance touring kayak for intermediate kayakers or novices looking to expand their skill set. The Murrelet SDC (swept down chine) has an 8.9" knee height and 8.8" rear cockpit height. She features our traditional deck with a swept down deck chine to lower her rear cockpit.