The Alpinestars Speedflight Motorcycle Boots have been inspired by some of the most popular trends of today. These boots combine street and sport-styled trainers and finely engineered riding boot. They are the perfect boot for all types of riding; from commuting to touring!TPF - Transversal Protective Frame midsole sandwiched betweens dual density rubber.Advanced & lightweight main chassis.Molded semi-rigid heel piece with injected foam.TPU heel counter for added protection and stability.CE EN13634:2017 approved.The Alpinestars Speedflight Motorcycle Boots are constructed from a performance ripstop upper with seamless reinforcement panels. It also features a molded, semi-rigid heel piece with injected foam, which provides even greater protection. The Speedflight boots feature an advanced and lightweight main chassis, which aids in longer days riding/walking. The use of a TPF (Transversal Protection Frame) midsole, it has been sandwiched between a dual density rubber sole with front pro