Vivobarefoot Tracker Leather AT II Women's BrackenBuilt to last, built to perform Hit the trails with full feeling Feel the terrain beneath your feet with the high performance All Terrain outsole of the Tracker Leather AT II. Say goodbye to sweaty feet the removal of the waterproof membrane ensures full breathability. The bonded sole keeps water out while enhancing repairability and recyclability. Fit, Feel, Flex: For natural stability, natural sensory feedback and natural strength.