Merrell Women's Bare Access Arc 3 Trail Running Shoe 100% synthetic Imported Vibram sole Weight: 11 oz 0mm heel-to-toe drop / 8mm cushion / 13.5mm stack height M Select Fresh odor control-treated mesh lining Machine washable in cold water (gentle cycle, air dry For long-distance runners and those new to zero drop footwear, Merrell infuses the Arc 3 with extra toe and heel cushion.