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. Always be ready to take on the trails with the long-lasting durability, supportive comfort, and reliable grippy outsole of the Asolo Flyer MM hiking shoe. Polyester mesh and synthetic upper. Recommended for: lightweight day hiking, overnight trips, and hiking on mixed trail conditions. Traditional lace-up style for a secure fit. Soft velveteen lining for excellent breathability. A-Sport anatomic footbed provides a contoured design to fit the shape of your foot for incredible underfoot support and comfort. Mono-density EVA midsole is made with a new generation of compound and it offers comfort, cushioning, and stability. TPU toe cap for added foot protection. Vibram MegaGrip compound outsole with self-cleaning lugs that increases grip on wet surfaces ad resistance from abrasion. Imported. Measurements: Weight: 13 oz Product measurements were taken using size US Mens 11.5, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.