Zoot Men's Ultra Speed 2.0 Running Shoe 100% Synthetic and mesh Rubber sole Upper Material: Waterproofing: Lining: Closure: pull-onLast: Footbed: Midsole: ZVASole: Carbon Span+Support Type: Heel / Forefoot Height: 17 / 7 mmDrop: 10 mmClaimed Weight: [single] 6.9 ozRecommended Use: running, training, triathlonsManufacturer Warranty: 1 year