Technical Data Sheet Mountain Boot. Upper: Single piece in calf leather, black color, thickness 2/2.2 mm. Lining: Breathable and waterproof Multydray membrane. Insole: Technical anti-perforation fabric in Kevlar 5 mm; Ankle protection with semi-rigid plastic insert; Cleaning insole, anatomical, removable and washable; Gusset and Padding: In suede leather; Laces: approximately 180 cm long; Perimeter band: in wear-resistant rubber, thickness 1.5 mm. Sole: Outsole in genuine VIBRAM rubber. Construction: AGO, seamless. Weight: Size 42, 1.600 kg.