Altra Running Men's One 2.5
  • Color: Midnight Blue
  • Color: Hornet
  • Color: Orange Fade
  • Color: Black
  • Color: Red/Silver
  • Color: Blue

Altra Running Men's One 2.5

Availability: Check Store Availability

Product Details

Altra Running Men's One 2.5

The new One 2.5 is built for speed, without sacrificing the comfort needed to maintain it through the finish line. A FootShape™ toe box lets your toes relax and move freely for incredible comfort, extra stability and a more powerful toe-off. Innerflex™ technology adapts to the flexion of your foot with omnidirectional flex grooves in the midsole. Responsive A-Bound™ cushioning protects the feet at impact and rebounds to add a spring to each step. The weight-balanced, Zero Drop™ platform helps you maintain low-impact form, even when fatigue sets in at the end of a hard race or workout. Go fast, go hard and stay comfortable from step one to the finish line with the new One 2.5.

Improved Fit
Redesigned Upper
New Color Options

Technical Specs

Weight: 6.3 oz.
Cushioning: Light
Ideal Uses: Running, Racing, Speed Work, Training, Walking
Designed to Improve: Running Form, Toe Splay, Stability, Comfort
Platform: Fully Cushioned Zero Drop™ Platform, FootShape™ Toe Box
Stack Height: 23 mm
Midsole: Dual Layer EVA with A-Bound™ Top Layer, InnerFlex™ Technology
Outsole: FootPod™ Technology
Insole: 5 mm Contour Footbed
Upper: Quick-Dry Air Mesh


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  • Part Numbers close open

    Option Barcode Store SKU
    Black / 10 00074345372924 37589
    Black / 11.5 00074345225565 37478
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