Amazon.com | Vibram Men。The Vibram FiveFingers Mens KSO EVO is a universal, minimal training tool and the number one selling FiveFingers style. Maximum ground feedback with 3mm rubber outsole in grippy, hard wearing XS TREK compound. Fast lacing polyester mesh upper and 2mm EVA insole with Drylex sockliner provide comfort and natural feel. XS-Trek Sole: Maximum articulation and ground feel Assured grip and essential protection* Light, airy and simple adjustable upper design This style is part of our max feel product philosophy. Shoes are new with box.