Upper:Water-repellent Action nubuck with mesh insert and anti-abrasion reinforcement in toe cap area Outsole:Single-density polyurethane Toe cap:Polymer material, 200 joules Penetration-proof insole:Composite fibre, ceramic treatment Underfoot cover:Carbon, anatomically shaped Weight:550 (g) EU: 35-48 UK: 2.5-13 • Remarkably flexible and lightweight - approximate weight for size 42: 550 g • Not recommended for heavy-duty jobs (building, agriculture, heavy industry)