ALTRA OLYMPUS 4, WOMENS SIZE 8.5. Literally only worn a few times. Small scuffs on toe, shown in photo. The ALTRA Olympus 4 is a maximally cushioned trail running shoe that offers a plush, comfortable ride with a spacious, foot-shaped toe box. Maximum cushioning: With a 33mm stack height, the Olympus 4 provides significant underfoot protection to shield feet from rocks and roots on the trail. This makes it a popular choice for long-distance trail running, including ultra-marathons, and for runners who prefer a softer feel. FootShape toe box: The shoe features Altra's "Original" FootShape fit, which is the roomiest of their options. This design allows toes to splay naturally, promoting stability and comfort over long distances as feet swell. Zero-drop platform: As with all Altra shoes, the Olympus 4 has a zero-drop platform, meaning the heel and forefoot are at the same height from the ground. This encourages a more natural, low-impact running form. Vibram MegaGrip outsole: The outsole is made from Vibram MegaGrip, a sticky rubber compound known for providing exceptional traction on both wet and dry surfaces. Breathable upper: The shoe's engineered mesh upper is both breathable and durable, with drainage holes to keep feet dry.