Best Trail Running Shoes
for Ultramarathons:
Tested for 50K to 100 Miles

The Speedgoat remains the gold standard for all-terrain ultras, maximal cushion that holds up over 30+ hours without dead spots. Vibram Megagrip outsole handles everything from packed dirt to loose shale without compromise. The wide toe box accommodates the foot swelling that inevitably hits after hour 10, which makes it a reliable choice from 50K to 100 miles.

The Sense Ride's Contagrip MA outsole and embedded rock plate deliver exceptional proprioception on technical rocky singletrack where foot placement demands confidence. Slightly firmer platform means more ground feedback and less energy wasted on instability. Fits true to size and runs narrow, important to size up half a size for ultra distances where foot swelling is inevitable.

Eight-millimeter graphene-enhanced lugs dig into mud and release cleanly, crucial when every step in thick mud costs three times the energy of trail running. The Graphene Grip outsole stays sticky even when caked. Not the most comfortable shoe for 20+ miles of non-muddy terrain, so save it for race days where mud is a defining feature of the course.

Where races mix significant road mileage with trail segments, common in 100-mile events, the Cascadia delivers comfort on pavement without sacrificing trail grip. The BioMoGo DNA midsole tunes itself to runner weight and pace across long durations. At 30+ hours of use, the cushion holds up better than most competitors in this price range.

At $110, the Hierro delivers Fresh Foam cushioning typically found in shoes $40 more expensive. The Vibram outsole punches above the price point on moderate trail terrain. For a first ultra or budget-conscious runner, the Hierro is the most forgiving way to get a capable trail shoe without breaking the bank, and it holds up across a full 50K training cycle.

Topo's signature wide toe box is the widest available in a capable trail shoe, critical for runners whose feet splay significantly during ultra distances. The anatomical fit prevents blistering and black toenails that narrow shoes cause after hour 8. The 3mm drop is lower than most trail shoes, so transition gradually if you're coming from higher-drop shoes.

The Olympus delivers Altra's famous FootShape toe box combined with maximum stack height, the combination that makes it uniquely comfortable for 100-mile efforts on hard-packed or rocky trails. Zero drop is a love-it-or-hate-it feature: runners accustomed to it swear by reduced calf fatigue over ultra distances. Non-negotiable: train extensively in zero-drop before racing in it.

At 8.8 oz the Peregrine is the lightest race-worthy trail shoe on this list, with a PWRTRAC outsole that offers surprising grip-to-weight ratio. Best suited for faster 50K runners who prioritize turnover speed and don't need maximum cushion protection. The tradeoff: less underfoot protection after mile 25 on rocky terrain, pair with a rock plate insert for long rocky ultras.