Shoes
Apparel
Bags
Gear
Electronics
Nutrition & Health
Sale & Gifts
Men’s trail running shoe designed for technical terrain, featuring a 5mm drop, high cushioning, Vibram Megagrip outsole, ZipFoam midsole, and a roomy toe box with gaiter compatibility.
Compare your insole length to the guide below. To find your insole length, measure your foot and add 1.5cm for a regular fit, 1cm for a snug fit or 2cm for a looser fit. If you are between sizes we recommend going for the larger size.
To measure your foot most accurately, stand on a tape measure with your heel against a wall. While standing up and looking over your foot, read the measurement at the end of your longest toe. Remember to measure both feet and use the measurement of your longer foot. Find out more here.
"Insole cm" is our in-store measurements of the shoe's insole. "Brand cm" is the insole length the brand has given us, which is what you'll find on the box or on the brand's website. Our shoes are measured with the same method each time, so use the "Insole cm" column to get an accurate size you can compare across brands.
Click an icon above to select and view stock levels.
Note: this will not subscribe you to our newsletter, you will only receive one email when this product is back in stock.
Free Shipping On This Item
The Right Shoe Project
Shoes are made in many factories around the world and even models within the same brand can be quite different. To assist our customers in choosing the right size, we measure every shoe we receive. All this information is compiled so you can simply enter the length of your foot in centimetres, choose your preferred fit, and our calculator will recommend a size for you! Then, as you browse the website across various brands and models of shoes, we will provide a recommendation of your sizing in each model.
Still not sure? If you're in Brisbane, feel free to come in to our store in Milton for a fitting. Otherwise, you can contact our team for assistance and advice. If you would like to contribute to helping other customers please contact us with your shoe size, foot length and how well your shoes fit.
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:
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.
Click and Collect – Shop online and collect in our Milton, Brisbane store, free for all orders. Orders are usually ready within 2 hours (during opening hours). Click here for address and opening hours.
Terms and conditions apply, click here for a full overview of our shipping policies
Manufacturing defects covered, replaced or repaired if soon after purchase.
For a full overview of our returns and warranty policies, see Returns and Warranties
Help other Wildfire Sports & Trek users shop smarter by writing reviews for products you have purchased.
Write a product review
Inov-8 Bare-XF 210 V3 Wide Womens Shoes - Final Clearance
Inov-8 TrailFly Ultra G-Series 300 Max Mens Shoes
Topo Trailventure 2 Waterproof Mens Shoes
Altra Mont Blanc BOA Mens Shoes - Final Clearance
Xero Ridgeway Mesh Low Mens Shoes
Scarpa Moraine Mid Pro GTX Mens Shoes
Xero Mesa Trail Waterproof Mens Shoes - Final Clearance
Saucony Xodus Ultra 4 Mens Shoes
