Altra  Superior 4.5 Trail-Running Shoes - Men's

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Whether the trail ahead is wet, dry, rocky or flat, the men's Altra Superior 4.5 trail-running shoes are ready for it. They boast a light, fast feel, sticky rubber outsoles and removable rock plates.


  • Redesigned knit uppers provide increased durability and breathability and a locked-in fit
  • FootShape™ toe boxes allow toes to splay for natural foot positioning and comfort
  • Shoes feature improved drainage for creek-crossing expeditions and rainy-day runs
  • 5mm contoured insoles lend comfortable support
  • Zero Drop™ platforms (0mm heel-to-toe drop) place heel and forefoot the same distance from the ground for natural alignment and low-impact landing
  • Quantic™ midsole foam cushioning combines responsive performance in a lightweight package
  • Removable StoneGuard™ rock plates allow customizable protection as trail ruggedness changes
  • Sleeker rounded heels make for nimble handling over varying terrain
  • Sticky MaxTrac™ rubber outsoles provide surefooted traction
  • Stack height: 21mm


View the Altra Superior Product LineView all Altra Men's Trail-Running Shoes

Technical Specs

Item #174412
Best Use

Trail Running

Trail-Running Shoe Type


Running Shoe Cushioning

Moderate Cushion

Heel-to-Toe Drop (mm)


Heel Stack Height (mm)


Forefoot Stack Height (mm)


Footwear Height


Footwear Closure



Synthetic knit




Quantic foam


MaxTrac rubber

Rock Plate


Weight (Pair)

1 lb. 2 oz.



Size Chart

U.S. Men's77.588.599.51010.51111.51212.513141516
Foot Length (in.)9.81010.210.410.610.81111.211.411.611.81212.212.61313.4

Sizing Notes

Altra’s unique FootShape™ toe box and Balanced Cushioning™ platform create a natural fit that follows the shape of your foot, instead of squeezing your toes and raising your heel. Your toes have room to spread out and your foot remains in a flat, natural position. When fitting, be sure to allow a full thumb’s width in front of your toes. If your feet are used to cramped toe boxes, Altra shoes may feel a little big at first. Give your toes some time to get used to the newfound wiggle room.

Altra offers a range of FootShape fits:

Original Fit: The fit that started it all, Original is the roomiest of the 3 options from Altra.

Standard Fit: The most common fit from Altra is right in the middle of Original and Slim.

Slim Fit: The slimmest-fitting Altra option still allows room for your toes to spread out naturally.

IS THIS SHOE TRUE TO SIZE? The product Features above will provide a suggestion if Altra advises you to size up or down in this particular shoe. If no such note exists, please order your regular size.

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