UPPER Mesh fabric upper with 3D print reinforcement, wraps round your foot like a sock thanks to the Sock-Fit LW construction system, avoiding pressure points and ensuring maximum comfort and precision fit. The tongue is in lightweight and breathable fabrics for a traditional upper construction. INSOLE The "i-Respond" propulsion system enhances the thrust phase, amplifying energy input with greater energy return. SOLE PRESA® TRN-07 resulting from a multipurpose tread study. It is the “door to trail” concept that combines a single sole which can run easily on road routes, without renouncing reliability and safety even on rough terrain.ATR rubber and 4 mm lugs guarantee performance and durability on all terrains, while the geometry of the outsole allows a better stride.