K2 Skate Alexis 80 Boa, 10.5, Gray_CoralTime to break a sweat! Whether you are a casual fitness enthusiast or a workout junkie theres a skate for you in our Fitness category. The 80mm series provides a more controlled experience for the new or casual skater. When its time to level up, our 84mm+ series brings the speed and smooth roll needed for those longer sessions. With new colors and styling across all models and an all new engineered mesh on the 84mm+ skates the heat is on this summer!