The Ultra Fastpack IV Mid has been updated with FUTURELIGHT™and our FastFoam™ midsole system so you can cover more miles, faster, and with more comfort.
- Upper: Abrasion-resistant performance mesh with no-sew TPU overlays
- Breathable-waterproof FUTURELIGHT™ membrane
- Protective toe cap and heel overlay
- Integrated ghillie lacing system
- Gusseted tongue
- 3M™ reflective heel webbing
- Eco-friendly OrthoLite® X35™ Hybrid™ footbed
- Sole Unit: Energy-returning FastFoam™ midsole system
- ESS midfoot shank
- Vibram® Megagrip outsole
- Stairstep lug design