Fabric: Vent – Mesh & abrasion resistant fabric & 3d knitted lining: smooth textile lining Last Index: Approach Tech Flex Index: A4 A5 A6 A7 A8 A9 B1 B2 B3 Sole: Michelin rock Tech sole & Midsole Dual Tech Weight: 420 G Size UK 8.5 Features: Base Fit FeetMap soft padded ankle protection rubber toe cap tpu heel stabilizer anatomically shaped foodbed Michelin OCX approach compound board lasted Areas of Use: Via Ferrata, approach, walking