The main features of this new sandals are: the anti-shock mid-sole for extreme comfort, the running lace, the heel adjustment. These three elements improve the hold on the foot securing it perfectly to the sole unit. Never before were lightness, shock absorbing performance and comfort so indissolubly united combining the simplicity of this styles with optimal performance. Ideal for every hardcore outdoor enthusiast. (new patent pending fastening system). SOLE UNIT: Eterno with rubber sole. FOOTBED: lined in suede leather. UPPER: the new fast and precise fastening system makes it the easiest performing sandals ever. Soft padding for comfort. The thong replaceable lace holds the foot on uneven terrains. SIZES: 35-46.