90mm is a great ""go to"" size for wheels and the fit and support of this skate is incredible. The higher boot design helps add more stability when learning to ride taller 90mm wheels thus creating a better sense of stability and control when skating. The liner utilizes engineered mesh for a added breathability, sock like comfort and has all the cushioning one could need to make learning how to skate much more pleasant. The aluminum frame adds more power transfer and durability. The closure system is easy to use and secures the foot to maximize fit and comfort. The wheel/bearing set up is ideal for skaters to have the right amount of speed and control without going too fast. Brake is on the skate.