Athlete-approved and the flagship of the K2 Aggressive series is the Unnatural aggressive inline skate, geared for hard-charging skaters looking to push the boundaries of the sport. Built around a rich, black leather-textured upper, the Unnatural features 60mm wheels, a reinforced SoftBoot construction to the upper, and the combination of a ratchet buckle cuff closure and replaceable mid-foot powerstrap. It also has the added comfort benefits of a shock absorbing foot bed. We went back to the drawing board and came up with a completely redesigned 1- piece soul for extra durability, with Teflon inserts that reduce friction and allow you to slide almost any surface. The Unnatural also features K2's new UFS compliant frame. This frame can to be ridden flat ensuring that your inner wheels won't get hung up on H-Block based tricks. For those that want to ride a rockered setup, K2's frame hardware allows you to add rocker to your wheel setup without having to buy smaller wheels. If that's not enough, we channeled out a huge groove that works in harmony with the new Aggressive Base to create the easiest of platforms for locking on, whether riding a flat or rockered setup.