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. Feel comfortable tying up your laces for an adventurous trek in the lightweight Asolo Space GV shoes. Leather upper construction. Textile lining and cushioned removable insole. Lace-up closure. Shank features branding. Pull tabs on the tongue and heel for comfy fit. Vibram outsole with cleated detailing. GORE-TEX Performance Comfort Footwear technology offers waterproof protection to ensure feet stay dry and comfortably cool. Imported. Measurements: Weight: 12 oz Product measurements were taken using size 8.5, width B - Medium. Please note that measurements may vary by size.