Upper is 90% nylon, 5% calf leather, and 5% rubber. Sole is 70% rubber and 30% phylon. Reinforced construction. Sturdy lacing system with metal hooks. Padded high-top collar. Pull tab at the heel. Vibram Megagrip toothed tread pattern sole for optimal traction. Embroidered ROA logos at the tongue and heel. Printed ROA logo at the toe. The reinforced construction of the Andreas Boot is functional to off-road trails, with an upper designed specifically for outdoor terrain. The use of durable nylon ripstop brings a unique combination of softness and strength to the shoe, paired with Vibram’s Megagrip tread sole to deliver supreme traction and high resistance on tough surfaces. The silhouette’s padded high-top collar increases comfort during hours on-foot, as the overall design is made complete with embroidered ROA logos on the tongue and heel.