Vibram V-Alpha Mens - BlackThe V Alpha is a wolf in sheep's clothing.. literally! The soft Merino wool blend upper belies a Vibram Megagrip performance sole that's ready for anything. On the trails, in the gym, running, training or just being active AF, with the V Alpha you'll always have beast mode on standby. Average Weight = 140 grams 3. 7 mm MegaGrip rubber outsole 2 mm Foam insole for added comfort 50 50 wool synthetic upper material for breathability and reduced odor