Inov-8 Women's Trailroc 226 Trail Running Shoe 100% Manmade Imported Rubber sole Zero Drop - Zero differential from heel to toe offers the runner a barefoot experience, as close to the ground for maximum feel and efficiency. Zero Arrow Shoc-Zone - A 0mm footbed gives you the best of both worlds: A lower heel ridge to keep you closer to the ground to maximise your running efficiency with the essential minimal protection. Tri-C outSole Compound - Three different rubber compounds guarantee excellent grip and optimum durability. EVA Injection - For comfort and a soft feel under your feet. Weight - 226 grams.