The Nike Tri Fusion Black/University Red/White/Metallic Cool Grey of Men's Nikeido Running Shoe is made with tri-density cushioning and a lightweight, breathable upper for impact protection and cool comfort during your run. Anatomical flex grooves let you move naturally through your stride.PLUSH COMFORT. NATURAL FEEL.Tri-density midsole for a soft, smooth transitionLateral midfoot strap and leather overlays for structure and supportMesh upper for breathabilityAnatomical flex grooves are strategically placed for a smooth transitionBootie construction wraps the foot for a comfortable glove-like feel Solid rubber outsole with diamond pattern for durability and multidirectional traction...The Nike Shoes more colors