La Sportiva - Olympus Mons Cube - Expedition boots. Material type: synthetic|Other material information: Gaiter: water-repellent, seamless Cordura; Outer boot: polyamide, PE, thermo-reflective aluminium; high cut outer layer: 6 mm PE + EVA; inner layer: 4 mm PE + EVA|Closure: hook-and-loop closure|Closure: side zip|Closure: BOA twist lock|Sole: Vibram Litebase|Sole: climbing zone|Crampon Compatibility: crampon-compatible|Midsole: TPU 2 mm; different thickness at heel and toes; attachment pin points for skialp bindings|Reference size: medium-sized pair|Misc: Sole: Combination of Vibram Litebase and Vibram MorFlex; Insole: 3mm insulating honeycomb carbon fibre + 3 mm PrimaLoft Gold Aerogel