Engineered to conserve muscle energy on longer runs, this innovative trail-running shoe sits on high-efficiency technology that keeps you moving on any terrain. A fusion of springy cushioning and shock-absorbing support helps maintain comfortable alignment, with high-grip lugs in the tread reliably grounding every stride through debris, hills and other challenges. Trail: provides superior stability and traction on hills, uneven surfaces and changing terrain Distance: maintains consistent, reliable cushioning and support on longer runs Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Lace-up style Removable OrthoLite® insole allows for custom orthotics FlyteFoam® midsole bounces back reliably with every stride, even on long-distance runs GUIDESOLE™ curved sole design absorbs shock and reduces ankle flexion to reduce fatigue in leg muscles and increase the efficiency of every stride ASICSGRIP™ durable rubber tread puts grippy traction underfoot on changing terrain Synthetic and textile upper and lining/rubber and synthetic sole Imported Women's Shoes