The GTX-500 features all-new styling for 2023, ensuring that it remains the most popular skate at rinks throughout the country. Boots: Synthetic boots with Velcro straps. Chassis: Nylon plates with fixed toe stops. Wheels: 57mm urethane wheels with mag hubs. Bearings: Silver-Rated ABEC-5. Sizes: Men’s black 4-12; men’s black & teal 4-10; men’s white 4-10.