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.The Ember ML by Asolo is designed to fit the shape of your foot that results in a fluid, supportive, and pleasant fit.Designed as one-piece of water-resistant 1.8 mm suede leather and polyester mesh upper for long-lasting durability and breathability.Velveteen lining for a more comfortable feel.Easy lace-up design that allows for a more preferred fit.Asoflex Natural Shape footbed provides added comfort to the entire foot.Heel shape is designed to improve comfort.Molded EVA midsole provides lightweight support.TPU central insert features Asoflex Natural Shape comfort technology 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.Vibram rubber outsole designed with a low lateral profile that reflects the new Natural Shape fit and focuses on the main points of impact of the foot with the ground during take-off and landing.Imported. Measurements:Heel Height: 1 1 4 inWeight: 12 ozProduct measurements were taken using size US Women's 8.5, width B - Medium. measurements may vary by size.