ON Cloudventure Running Shoe - Men's Mesh Rubber sole Runner Profile: Runners looking for a lightweight trail shoe with full cushioning protection. Heel-toe offset: 6mm - 0.23 in Outer layer of the upper is built from engineered mesh. It is water-repellent and breathable at the same time and in the right places. Toe-cap is firmly fused with the engineered mesh to protect the toes. Provides powerful take-off in complex terrain.