Introducing the Tubes Slip-on, a fresh new addition to our active lifestyle sneaker category. Tubes technology provides unmatched comfort and cushioning through individually tuned tube structures that collapse and rebound as you walk. The design also provides incredible flexibility making every stride smooth and efficient. Smaller, more rigid tubes on the inside area of the heel provide extra medial support to reduce pronation. A lightweight engineered mesh upper provides a comfy sock-like fit that is easy to slip-on and off with no laces to tie. Tubes Lace Up Sneakers