Brand: MBTStyle: SikuSize: Men"s US 11-11.5 (EU 45)Color: RavenSynthetic upper with 3D mesh is lightweight and breathable allowing the foot to remain in an ideal inner environment3D mesh sock-lining wicks away moisture leaving the foot cool and dry all-day longTPU and glass fiber shank adds firmness to sole construction and also ensures a natural rolling movement of the foot for even weight distributionPU midsole with pivot is the balancing section underneath the metatarsus which requires an active rolling movement with every stepMasai Sensor (Masai Barefoot Technology®) creates a pleasant feeling of walking on a sandy beach or soft mossSecure rubber outsole offers lightweight support and durability