Flux Adapt Waterproof Runner Black Mens Size 8.5 Athletic 。Good used condition, wore for mostly indoor treadmill runs and errands. Men’s 7 / Women’s 8.5 Description A barefoot-style shoe built for the messes of real life. Powered by H2O Pro technology, it resists splashes and stains—without sacrificing comfort or breathability. A wide toe box and zero-drop sole support natural movement, while the AdaptSol™ insole cushions every step. The slip-resistant rubber outsole keeps you steady on slick floors. Whether you\'re walking, running, or on your feet for a 12-hour shift, it moves with you—comfortably, confidently, and without the bulk.