MAX-CUSHIONED COMFORT FOR TECHNICAL TERRAIN – Built to handle rugged trails with ease, the Topo Athletic Vista Trail Running Shoes feature a 38 x 33 mm stack height that delivers generous cushioning and stability; designed for long-distance trail runners and outdoor adventurers seeking comfort and protection on uneven ground ZIPFOAM MIDSOLE WITH ROCKER DESIGN FOR SMOOTH RIDES - The responsive ZipFoam midsole provides a lightweight yet plush ride, while the integrated rocker design ensures smooth transitions and reduces fatigue over long miles; ideal for runners who want both cushion and forward propulsion on challenging terrain VIBRAM MEGAGRIP OUTSOLE WITH 4 MM LUGS FOR SUPERIOR TRACTION - Tackle any trail with confidence; the newly designed Vibram Megagrip outsole features 4 mm lugs and a 5.5 mm rubber layer for exceptional grip and durability on wet, dry, or rocky surfaces DURABLE MESH UPPER WITH ENHANCED BREATHABILITY - A tightly woven mesh upper balances strength and airflow, offering optimal durability and breathability; whether you're running through dense forest or open mountain trails, your feet stay protected and well-ventilated RESPONSIVE FKT INSOLE AND UNIVERSAL GAITER ATTACHMENT - The specialty FKT Insole provides a secure, energized step-in feel with closed-cell construction for quick water drainage; the updated gaiter system now features a more universal hook-and-loop attachment at the heel, giving you added versatility and protection from debris (gaiters sold separately)