MTN Racer 4 - Wide (Men's) arc'teryx 25% More Flow Per Sip:

25% More Flow Per Sip: Flip open the bite valve and sip

zippered front stash pocket for organizing essentials

Weight: 20g / 0

with vacuum insulation to keep drinks piping hot or ice cold for 24 hours

MTN Racer 4 - Wide (Men's) arc'teryx 25% More Flow Per Sip:A fan favorite for race day and daily training, the Topo Athletic MTN Racer 4 offers rugged performance on technical trails. WIDE Fit ZipFoam Midsole Vibram Megagrip FKT Insole A 33 x 28 mm platform delivers underfoot cushioning and a protective barrier between you and the ground. The new upper is fine tuned for performance on technical terrain. The MTN Racer 4 now features Topo's FKT insole, allowing for faster water drainage and added rebound, while