Men’s Instinct 3.5


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The Instinct started it all and is back with a new look, softer upper, and more responsive ride! The Instinct & Intuition 3.5™ retains its lightweight, flexible design and innovative technology that put Altra on the map. The FootShape™ toe box allows your foot to relax and spread out naturally and keeps the big toe straight for more power. FootPod™ outsole technology maps the bones and tendons of your foot for natural flexibility and more responsiveness. A top layer of our A-Bound™ energy return compound puts a spring into each step. Lace up into this update and upgrade your run with the new Instinct & Intuition 3.5.

  • New Upper Design
  • More Responsive Midsole
  • Highly Reflective
Cushioning: Moderate
Weight: 8.1 oz./230 g.

Technical Specs

  • Other Features: Natural Ride System
  • Ideal Uses: Running, Ultramarathons, Long Distance Walking, Cross Training
  • Insole: 5 mm Contour Footbed
  • Platform: Natural Foot Positioning: FootShape™ Toe Box with Fully Cushioned Zero
  • Sizes: 7, 8–13, 14, 15
  • Sizing: Slightly Short
  • Stack Height: 24mm
  • Midsole: Dual Layer EVA with A-Bound™ Top Layer, InnerFlex™ Technology
  • Designed to Improve: Running Form, Toe Splay, Stability, Power
  • Upper: Quick-Dry Air Mesh
  • Outsole: FootPod™ Technology
  • Cushioning: Moderate
  • Weight: 8.1 oz./230 g.


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