The 2012 K2 FIT 80 inline Skates for men are part of K2's Fitness Inspired Technology (FIT) Series. The K2 Fit 80 Skates are at 80mm wheel size, but with aluminum frames. The aluminum frames are more responsive and stable at higher speeds than the lesser priced composite frame skate from K2 at 80mm wheel size. This allows the K2 Fit 80 to work well for beginning through advanced skaters. The smaller wheel size allows recreational skaters to have maneuverability and control to start and stop quickly. The rigidity of the aluminum frames increases power transfer to provide more feel and response to the skater skating for fitness or training.