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. Be bold on every trail with the superior protection and outstanding comfort of the Megaton Mid GV MM hiking boot from Asolo! Mid-cut hiking boot is ideal for light hiking and from summer thru winter walking. 1.6-1.8mm, water-resistant suede leather upper and features breathable Schoeller polyester side panels. 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. Plush tongue and collar for added comfort and performance. Heel pull loop for easier on and off. Durable rubber toe cap for added protection. Lite 2 plus insole offers lightweight support and superior underfoot comfort. High-density EVA midsole provides long-lasting cushioning for all-day comfort. Asolo/Vibram Synthesis rubber outsole with Megagrip compound is a highly technical sole featuring self-cleaning lugs designed for optimum performance on varying types of terrain. Made in Romania. Measurements: Weight: 1 lb 1 oz Shaft: 5 3 4 in Product measurements were taken using size US Mens 12, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.