Took them for a couple short runs, great rated shoe, just not quite my fit. About this item THIS MEN'S SHOE IS FOR: The Caldera 7 provides ultra-cushion for ultra-distances with added support for trail runners, optimized to be lightweight, responsive, and durable for plush comfort. SUPREME SOFTNESS: Super-soft nitrogen-infused DNA LOFT v3 cushioning, our softest cushioning is optimized to be lightweight, responsive, and durable for plush comfort. RUGGED OUTSOLE: New outsole made from TrailTrack Green design provides superior traction and grip and traction on both wet and dry trails. DURABLE & DYNAMIC: Improved upper features external vague for a more secure, adaptable fit at the midfoot, while breathable TPEE sandwich air mesh offers protective durability and moisture management over versatile terrain. STABLE RIDE: Strategically raised midsole foam walls offer added security and flexibility where you need it, while the widened base and added flex grooves in the outsole work to stabilize your landings and carry you smoothly over uneven terrain.