Zoom foam midsole, stable for trails, ankle gaitor helps limit trail debris, overlays stretch across the toe for extra durability. Specs: Weight: Approx. 320 g/11.2 oz, Heel-to-toe drop: 4 mm, Reflective details Colors: White, Bicoastal, Court Blue, Black NOTES: Condition: Lightly used. Purchased 2 weeks ago and needed a smaller size for a tighter fit on the trails vs road running. Shoe: Fantastic running shoe for anyone in need of more sturdy cushion than current running shoes. The trail treads make a huge difference even on non-smooth surfaces.