Altra 3-Sum Shoe is built for triathletes who demand the ultimate in performance. $130
    Altra 3-Sum Shoe is built for triathletes who demand the ultimate in performance. $130

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Altra 3-Sum Shoe - Men's
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Altra 3-Sum Shoe - Men's (A1224)


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Altra 3-Sum Shoe - Men's

The 3-Sum™ is the sum of the three event triathlon experience. Lightweight, fast, and lightly cushioned, the 3-Sum™ is built for triathletes who demand the ultimate in performance. With a seamless upper, easy-on transition pull-tabs, quick-draw lacing system and heel/forefoot drain holes, the 3-Sum™ minimizes transition time and maximizes performance. The Zero Drop™ design allows for natural loading of the calf and Achilles, while optimizing the landing angle to ensure powerful speed with minimal impact. The Altra 3-Sum™ – get off the bike and run like there is no tomorrow!

Tech. Specs

  • Weight: 6.7 oz
  • Cushioning: Light
  • Ideal Uses: Traithlons, Running, Road Racing, Speed Work
  • Platform: Zero Drop™ Platform, FootShape™ toe box, Natural Ride System
  • Stack Height: 18 mm
  • Midsole: Blended EVA/AltraBound™
  • Outsole: Blown Rubber SpeedPod
  • Insole: 5mm Contour
  • Upper: Minimal Liner / Sock-free Liner, Treated for Anti-odor / Anti-bacterial
  • Lacing Structure: Custom Yankz Quickdraw Laces for customized fit and faster transition
  • Other Features: Seamless upper, Easy-on Transition Pull Tabs, Quickdraw Laces, Heel and Forefoot Drain Holes, Vegan Friendly, Natural Ride System

Zero Drop
Places your heel and forefoot the same distance from the ground to promote low-impact technique, naturally align body posture and strengthen lower leg muscles weakened from running on elevated heels.

FootShape toe box
Allows the toes to relax and spread out naturally and the big toe to remain in a straight position for more stability and a powerful toe-off to maximize running performance.

NRS
This unique outsole and midsole componentry allows you to run the way you were born to by combining metatarsal mapping, a fully cushioned Zero Drop platform and FootShape™ toe box.

Abound
Made of recycled materials, this unique layer sits directly under the foot to reduce the impact of hard surfaces and return energy into each stride. It's literally a layer of bouncy ball between the road and your feet!


    
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Our Price: $130.00

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