Introducing the 3-Sum 1.5™ by Altra—the ultimate performance Triathlon shoe. From the seamless upper, to the level of cushioning and female-specific shape of the shoe, the new 3-Sum 1.5 was designed specifically for women triathletes. The FootShape™ toe box lets your toes roam free for greater comfort, stability and speed across long distance runs. Outsole drainage holes, quick-draw lacing and easy-on tabs all combine to provide quick transition from the water to the road. The Zero Drop™ platform allows for natural loading of the calf and Achilles, while optimizing the landing angle to ensure powerful speed with minimal impact. Burst through your limits and run free with the lightweight, go-fast Altra 3-Sum 1.5.
Ideal Uses: Triathlons, Running, Road Racing, Speed Work