MTN Racer 4 (Men's) Sizes:10.0 The smooth mesh fabric used

The smooth mesh fabric used throughout the Liner shorts helps the liner move smoothly under your shell layer for unrestricted pedaling

Best For: Muddy

Smartwool updated this 100% Merino wool fan-favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics

The Cross Feed Fuel Delivery with upwards angle for flame velocity and crossed sticks for turbulence is the perfect recipe for efficiency

MTN Racer 4 (Men's) Sizes:10.0 The smooth mesh fabric usedA fan favorite for race day and daily training, the Topo Athletic MTN Racer 4 offers rugged performance on technical trails. ZipFoam Midsole Vibram Megagrip FKT Insole A 33 x 28 mm platform delivers underfoot cushioning and a protective barrier between you and the ground. Our new upper is fine tuned for performance on technical terrain. The MTN Racer 4 now features our FKT insole, allowing for faster water drainage and added rebound, while our