Specifications

Brand : Topo Athletic

Model # : mountainracer4-m

Gender : Mens

Shoe Type : Trail

Product Family : Mountain Racer

Drop : 5mm

Foot Type : Neutral

Cushioning : Moderate

Width : Standard (Wide Toebox)

Vegan : Yes

Heel Stack Height : 33mm

Toe Stack Height : 28mm

Weight : 295g (size 9 USM)

Upper : Engineered Mesh

Midsole : ZipFoam | FKT Insole

Outsole : Vibram Megagrip

Engineered for the toughest conditions and most demanding runners, the Topo Athletic Mountain Racer 4 Men'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.

Key Features:

  • Lightweight: Only 295g (size 9 USM)
  • 5mm drop: For natural movement with added cushioning
  • 33mm heel stack height and 28mm forefoot stack height: For optimal balance of protection and feel
  • Neutral support: Designed for runners with a neutral gait
  • Topo FKT insole: Non-absorbent TPU beaded foam for fast drainage and extra comfort
  • ZipFoam midsole: Updated proprietary foam for long-lasting bounce and durability, now lighter and more responsive
  • Vibram Megagrip outsole: Industry-leading traction on wet, rocky, or technical terrain
  • Roomy toe box: Anatomical design allows toes to spread naturally
  • Engineered mesh upper: Lightweight, breathable, enhanced for technical trail security, and made from recycled materials
  • Gaiter compatible: Features an improved hook-and-loop system for debris protection (gaiter not included)

Specifications

Brand : Topo Athletic

Model # : mountainracer4-m

Gender : Mens

Shoe Type : Trail

Product Family : Mountain Racer

Drop : 5mm

Foot Type : Neutral

Cushioning : Moderate

Width : Standard (Wide Toebox)

Vegan : Yes

Heel Stack Height : 33mm

Toe Stack Height : 28mm

Weight : 295g (size 9 USM)

Upper : Engineered Mesh

Midsole : ZipFoam | FKT Insole

Outsole : Vibram Megagrip

Free shipping on orders over $100 to Australia & NZ*
Shipping on small orders (under $100) only $9.95
Express shipping to Australia & NZ only $15

Shipping Options

Standard Shipping (AU/NZ) – FREE on orders over $100 and $9.95 on orders under $100. Orders are dispatched within 1 business day. Click here for shipping delivery times

Select ‘Standard Shipping – Auspost Only’ if you would prefer your parcel is sent with Auspost. Otherwise it will be shipped with any of our available carriers. Auspost Only shipping is not available on some very heavy/bulky orders.

Express Shipping (AU/NZ) – Need it faster? Express Shipping is available for $15. Express Shipping is not available on heavy/bulky orders. Orders placed before midday on business days are usually dispatched same day (otherwise within 1 business day). Delivery times in the table below.

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Manufacturing defects covered, replaced or repaired if soon after purchase.

At a glance:

  • If you have selected the wrong product/size for you, or want to exchange/return for any reason except for warranty or our error, this is referred to as a 'change of mind' return.
  • Not all products are eligible for change of mind returns (click here for excluded products). Final Clearance products are not eligible for change of mind returns.
  • Once you submit a Return Request, we will provide return instructions via email (along with a prepaid return label if applicable). Please wait to receive this before returning any items (Try 2 Anything excluded)
  • Change of mind returns can be resolved by your choice of exchange, full store credit, or a refund. Refunds are subject to a $19.95 admin fee.

For a full overview of our returns and warranty policies, see Returns and Warranties

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