Material: Upper: Durable Mesh Provides Exceptional Fit And Support Around Your Foot。 Gusseted Tongue Keeps The Debris Out Omni-Tech™ Waterproof Breathable Seam-Sealed Membrane Bootie Construction Midsole: Techlite™ Lightweight Midsole For Long Lasting Comfort, Superior Cushioning, And High Energy Return Outsole: Omni-Grip™ Non-Marking Traction Rubber Trail Difficulty : ★★★★