K2 Moto 84 Men&#39;s In-line Skates(Size-5) The unmatched comfort of the K2 Softboot Cuff that is lightweight and sculpted for speed and comfort Die Cast Aluminum frame: Medium length energy transferring frame is more efficient with the added stability of aluminum 84mm 80A wheels/Max size 90mm, ILQ7 Berarings for a great coupling of speed and smoothness