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. Bring comfort to your feet and style to your look wearing the Asolo Tahoe Mid GTX ML shoes. Polyester reinforced with TPU upper. Gore-Tex extended comfort lining. Removable Asolo Ortholite footbed. GORE-TEX Performance Comfort Footwear technology offers waterproof protection to ensure feet stay dry and comfortably cool. Round toe. Lace closure. Ankle pull-on tab. Synthetic outsole. Imported. Measurements: Weight: 15 oz Shaft: 5 1 2 in Product measurements were taken using size 9, width B - Medium. Please note that measurements may vary by size.