On Men's Cloudspike XC Shoe size:10.5. Is Birko-Flor as durable as

Is Birko-Flor as durable as real leather

Building on Altra's classic features like a 0 heel-toe drop and a wide toe-box

Round toe shape

Sam Edelman Bay

On Men's Cloudspike XC Shoe size:10.5. Is Birko-Flor as durable asOur first cross country spike for fast middle distances. Built to go off road, engineered for mud, water, hills, and sharp turns. Key features Weight: 143. 1g Helion HF hyper foam midsole soft landings & propulsion Light, breathable one piece upper Supportive and secure fit Mesh material for efficient water drainage Six spikes and strategically placed heel grip for traction Tested and proven by On athletes Speedboard with strategic cut outs for