Efficient speed and comfort for the triathlete. Seamless upper construction for a comfortable, distraction-free fit. FlyteFoam ultra-lightweight midsole cushions and returns energy with every step for a faster, smoother stride. WET GRIP blends organic and non-organic compounds for enhanced traction on wet surfaces. ASICS High Abrasion Rubber in high-wear areas of the outsole for extra durability where you need it most. Wt. 8.9 oz.