Asolo TPS Equalon GV Evo Boot - Men's Leather,Nylon,Rubber,Suede Imported 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&reg; lining.