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 lining. Gear up and head out on a weekend excursion! Hike comfortably from sun up to sun down in the Asolo Drifter GV boots. Features the Radiant sole, specifically designed for trekking enthusiasts. Mid-cut design provides superior ankle protection. Hardy, 1.6-1.8mm, water-resistant suede leather upper offers exceptional durability. High tenacity nylon panels are abrasion resistant and help maintain a breathable environment. GORE-TEX Extended Comfort Footwear technology offers waterproof protection to ensure feet stay dry and comfortably cool. This non-insulated safeguard is best suited for moderate to warm climates. Gusseted tongue helps keep debris and moisture out. Plush tongue and collar for added comfort and performance. Heel pull loop for easier on and off. Lite 2 insole offers lightweight support. Molded EVA midsole provides long-lasting cushion for all-day comfort. Radiant, Asolo-Vibram, rubber outsole with aggressive heel cleats and Asolo brake system for exceptional grip and protection over varied terrain, as well as enhanced pronation control. Built on the Asoloflex 00 SR last. Made in Romania. Measurements: Weight: 1 lb 10 oz Circumference: 13 1 2 in Shaft: 6 in Product measurements were taken using size US Men' s 10.5, width D - Medium.Weight of footwear is based on a single item, not a pair.