A 33 x 28 mm platform delivers underfoot cushioning and a protective barrier between you and the ground

and outsole design gives the shoe a sleek

Fli-Lyte 5 strikes the perfect balance between soft cushioning and responsive bounce

You and the Phantom 4 are the perfect match

MTN Racer 4 Men A 33 x 28 mmMENS A fan favorite for race day and daily training, the Topo Athletic MTN Racer 4 offers rugged performance on technical trails. 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 improved gaiter attachment system keeps out