The 4.5 Boot delivers comfort, control, and safety. The SlideLock auto-locking one-way sliding closure ensures a secure and comfortable seal at the top of the boot. Exceptional bike grip is guaranteed with the flat and grippy interior of the boot. The low-profile toe-box makes gear shifting easier and more intuitive. The boot's design focuses on ankle support, with a heel grip ankle design that provides stability when riding on your feet. The boot is lined with a breathable mesh 3D liner, which offers excellent air circulation, anti-slip reinforcement, and zero heel lift. Fit: Outstanding comfort with first-class fit even for wide feet. Closure: SlideLock system, auto-locking one way sliding closure for great seal at top of boot. Polymer composite buckles with Over-lock system and stainless steel base. Shin: Impact-reinforced with a TPU plate and internal padding for added protection.