Explore NITRO™ 2 is engineered for challenging terrains. The NITRO™ foam spans the length of the midsole, ensuring lasting comfort and cushioning, paired with PROFOAM for stability and durability. The outsole has full PUMAGRIP ATR rubber coverage for multi surface traction and protection. Balancing cushioning, protection, and support, Explore is crafted for hiking rugged terrain and helping you conquer your next adventure.