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Altra Women's 3-Sum 1.5 Triathlon Racing Shoes Altra Women's 3-Sum 1.5 Triathlon Racing Shoes Altra Women's 3-Sum 1.5 Triathlon Racing Shoes Altra Women's 3-Sum 1.5 Triathlon Racing Shoes

Altra Women's 3-Sum 1.5 Triathlon Racing Shoes

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SKU: A2424
Product Code: 8114830

Availability: Usually Ships in 24 Hours
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  • Get the most out of your running footwear with the 3-Sum 1.5 Triathlon running shoes. Designed to meet the needs of the competitive triathlete, this racing shoe offers optimal comfort and features a zero drop platform to encourage an efficient stride. The minimum-feature, anatomical fit will keep your feet comfortable mile after mile.


    • 6.8oz. (Size 8).

    Stack Height

    • Heel: 13mm.
    • Forefoot: 13mm.


    • A-Bound: A recycled, environmentally friendly compound that offers underfoot protection and cushioning.


    • Natural Foot Design: Natural foot shape adds optimal comfort.
    • Natural Ride System (NRS): Includes a natural, foot-shaped last with a zero drop and metatarsal-specific shapes in the outsole to assist proper foot mechanics for natural foot movement.
    • EVA: For durable cushioning.


    • 5mm Removable Support Insoles: Offer runners with more traditional support and a molded arch.
    • Quick Dry Air: Wicks water away from foot for light and breathable comfort.
    • Asymmetrical Lacing System: For comfortable fit that matches the shape of your foot.
    • Seamless Upper: Reduces irritation for optimal comfort.
    • Strobel Last: For a comfortable underfoot feel.
    • Pull Tabs: For quick entry.


    • Blown Rubber: Lightweight, flexible cushioning in forefoot.
    • SpeedPod Outsole: Follows natural human foot construction for maximum flexibility and comfortable ride.
    • Drainage Holes: Allows water to exit the shoe.




Altra Zero Drop™ Footwear was developed with one simple mission: to provide runners with a shoe that allowed them to run naturally. Working with engineers, designers, elite runners and biomechanical experts, Altra created the unique Zero Drop™ barefoot running shoe.

Blending cushioned protection with the benefits of barefoot freedom, Altra footwear is designed to reduce injury and promote proper technique for the most natural run. Every shoe features Zero Drop™ and a foot-shaped, gender-specific design so everyone can find the right fit and run better and healthier. Its footwear has reduced injuries, improved running technique and changed lives. Helping customers run better and live healthier continues to be the foundation and motivation of Altra.