Men's Vibram FiveFingers, V-Trek Insulated Hiking Shoe. Slip your feet into the cozy V-TREK from Vibram that will keep your feet warm, even as the temperatures drop. With a fleece lining, this style is perfect for fall and winter trekking, walking and hiking. Polyamide and polyester blend upperProtective film on top of and in between the toes for added protection4mm Soft polyurethane heavy fleece socklinerMid-cut profile with traditional lacing system Polyurethane midsole with a bit of added thickness for extra protectionMegagrip outsole provides the premium outdoor formula for grip in both wet and dry conditions4 mm lugsMachine Wash Cold / Air Dry