Asolo Men's Reston WP Hiking Boot 2016 Suede Imported The meaning of "V", "GV" and "GTX" in the Asolo style names: V stands for a Vibram outsole, GV stands for Gore-Tex lining with a Vibram outsole, and GTX is for a GORE-TEX&reg; lining. The Reston WP hiking boot by Asolo&reg; is designed to fit to the natural shape of your foot. Allowing your feet to move smoothly and keep a steady balance on those challenging, uneven trails. Water-resistant suede upper. Waterproof textile lining provides a dry, comfortable foot environment. Easy lace-up design that allows for a more preferred fit. Asoflex Natural Shape footbed provides added comfort to the entire foot. Molded EVA midsole provides lightweight support. TPU central insert features the Asoflex Natural Shape comfort design that is positioned between the outsole and the EVA midsole, offering support and improved foot control on the sides and on the back area. The slots in the medial part allow a smooth and pleasant rolling. Dual-colored Vibram&reg; rubber outsole design