ASICS Women's Gel-Fuji Runnegade 2 Running Shoe 100% Synthetic Imported Rubber sole Shaft measures approximately 3" from arch Plasma guard: Your shoes are protected from rain and mud without the loss of breathability and flexibility through plasma guard, an innovative coating technology patented by Euro plasma. Solyte Midsole Material: A lighter weight midsole compound than ASICS' standard EVA and speva. Also features enhanced cushioning and durability. Rear foot GEL Cushioning System: Attenuates shock during impact phase and allows for a smooth transition to midstance. Trail Specific Outsole: Reversed lugs provide uphill and downhill traction on all types of terrain. Seamless Construction: The use of seamless materials reduces the potential for irritation and friction caused by traditional stitches and seams.