The 3DS is the stiffest boot in the line. This series is built more like a snowboard boot, set to conform to a rider's leg as much as their feet. Regardless of support and stiffness, the 3DS is still one of the easiest boots on the market to get into. Combining a soft conforming neo sock and smooth Lycra liner means more time on the water without frustrations in the water. Closed Toe. Quick. Cinch Front Lace. Sock Construction. Velcro Top Strap. Formed Achilles EVA. Formed Upper Heel. Formed Upper Toe