Carbon Fiber Brace system First things of notice is that the Mag-1 has no visual brace system. Sidi Integrated a carbon-fiber brace in the boot itself. This brace allows excellent flex movement front-to-back while being firm side-to-side. The rear-upper features a soft red TPU-plastic to prevent the system pushing in your calf. Tecno-3 Magnetic closure system The newly fitted closure system called " Tecno-3 Magnetic" makes sure the boot will perfectly fit by its precise adjusting. It is quick & easy to use due to the magnetic closure, helping you close the boot with one hand only. The magnets will stick on the boot in order to keep the closure in place. The boot folds together, which makes a zipper superfluous. A-Symmetric ankels & a zipless closure The ankles of the boot are smooth & flat inside for more adherence with the bike & feature a replaceable shock absorbing system in the back & outside. The boot is made from synthetic leather & is triple-stitched on the high-stress...