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.Stay steady and strong during all your outdoor adventures, in good and wet weather, with the Asolo® Tacoma GV boot! Mid-cut design provides superior ankle protection.Hardy, 1.6-1.8mm, water-resistant suede leather upper offers exceptional durability. Lined with 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/off.Anatomic footbed with Spark Technology offers lightweight support with a sound structure for excellent underfoot comfort. Molded EVA midsole provides long-lasting cushion for all-day comfort. Asolo-Vibram® Agile 2 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 Tenere last. Made in Romania.Measurements: Heel Height: 1 1⁄4 in Weight: 1 lb 1 oz Shaft: 5 inProduct measurements were taken using size US Women's 8.5, width B - Medium. Please note that measurements may vary by size.