Engineered for the toughest conditions and most demanding runners, the Topo Athletic Mountain Racer 4 Wide Women’s Shoes are built to conquer technical trail terrain with speed, security, and comfort. Designed as a versatile option for both racing and high-mileage training, this model balances high cushion protection with a responsive underfoot feel, making it ideal for long distances over rugged ground. Weighing approximately 295 grams, the shoe features a 5 mm drop, delivering a confident blend of agility and impact protection. A new engineered mesh upper delivers a snug midfoot and heel fit while preserving Topo’s signature roomy toe box, allowing toes to splay naturally and reduce fatigue over time.

The performance-driven construction is supported by the resilient ZipFoam midsole, which offers more rebound than traditional EVA, and the Topo FKT insole, a non-absorbent, closed-cell TPU foam insert that enhances water drainage and midfoot energy return. Beneath it all, the trail-proven Vibram Megagrip outsole provides aggressive traction across dry, wet, or rocky surfaces. Additionally, the Mountain Racer 4 is gaiter compatible, offering enhanced protection against debris for technical adventures. Whether you're pacing ultras, tackling mountain races, or logging your weekly trail miles, the Mountain Racer 4 is a lightweight yet capable trail partner designed to keep you moving confidently. This wide-fit version ensures that you have the extra internal volume necessary for long-distance comfort without sacrificing the secure lockdown needed for technical performance.

What’s New?

• Engineered Mesh: Performance-tuned for technical terrain and now contains 30% recycled materials.
• Advanced FKT Insole: A new, fast-draining FKT (Fastest Known Time) insole designed to shed water quickly and maintain a lightweight feel in wet conditions.
• Improved Gaiter System: For a more secure attachment point for the Switchback Gaiter, which is sold separately.

The Topo Mountain Racer 4 Wide Women’s Shoes also feature: 

• Weight: At 241g (size 7 USW), this shoe offers a lightweight feel that doesn't compromise on rugged trail performance. 
• 5mm Drop: Topo's highest available drop to access natural running with more heel cushioning.
• Wide (D) Fit: Specifically designed to accommodate higher-volume feet for a non-restrictive fit.
• 33 x 28mm Platform: Delivers generous underfoot cushioning and protection.
• Zip Foam: A proprietary midsole compound that is springier and more resilient than EVA.
• No Rock Plate: Allowing for more natural flexibility while the stack height manages trail protection.
• Anatomical Toe Box: Designed to let toes spread naturally and comfortably.
• Vibram Megagrip: Provides reliable traction and durability on the most demanding trails.

Brand : Topo Athletic

Gender : Womens

Shoe Type : Trail

Product Family : Mountain Racer

Drop : 5mm

Foot Type : Neutral

Cushioning : Maximum

Width : Wide

Vegan : Yes

Heel Stack Height : 33mm

Toe Stack Height : 28mm

Weight : 241g (size 7 USW)

Upper : Engineered Mesh

Midsole : Zip Foam

Outsole : Vibram Megagrip