Details · Namibian antelope leather · Perforated vamp · Vibram Vi-Lite sole · Heel tongue with drawstring closure · Suede heel and trim · Slip on · A2237SBK Description Our Strainer in Black Leather. Produced in a Namibian antelope leather, the slip on Strainer shoe has a perforated leather vamp, suede details, a Vibram Vi-Lite sole and a tongue construction at the heel with drawstring closure. Strainer is true to size. Please note that sizing is mens EU. We recommend going down one size for womens EU equivalent.