Columbia Powervent PFG Slip-On Shoes Perforated, Techlite midsole and EVA foam footbed offer cushioning, while allowing airflow and water drainage to help keep feet dry. Omni-Grip non-marking rubber outsole with razor siping and drainage ports repels water and delivers excellent traction on wet or dry surfaces. Thermoplastic polyurethane toecap offers added toe protection. Adjustable speed lacing lets you customize the fit and offers on / off ease. 0