Video: What You Need to Know Before Buying the Altra Superior 4.5
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Altra Superior 4.5
Altra Superior 4.5 Lightweight trail running shoes designed for races up to 50K. Ideal for runners who want precision foot placement, high agility, speed, and a little support while maintaining ground feel. The upper has been redesigned for better drainage, while the midsole and outsole remain the same.
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Key Features of the Altra Superior 4.5:
- The lightest trail shoe from the brand
- Soft Quantic midsole
- Excellent drainage
- Ideal for speed
- Highly agile and stable
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Technology Details - Altra Superior 4.5
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Upper
The SEAMLESS WRAP-AROUND ENGINEERED KNIT upper features a redesigned seamless knit for a more secure, locked-in fit.
The upper is more durable and breathable than before, with additional ankle and Achilles tendon coverage compared to the 4.0. True to Altra, the forefoot is designed with a wide, natural foot shape to allow free toe movement, improve running efficiency, and help reduce the risk of injury. Finally, it features a gaiter tab for easier and more convenient use.
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Midsole
The Superior 4.5 features a QUANTIC™ midsole, Altra's new midsole made from a special material renowned for its softness, responsiveness, and lightweight properties. The midsole also features a flexible grid-like pattern called INNER FLEX™ technology, designed to help runners place their feet as desired and improve running efficiency. Its zero-drop design means the heel and forefoot heights are equal, matching the natural shape of the human foot. This is what Altra calls BALANCED CUSHIONING, which provides exceptional foot placement stability, reduces impact during running, and helps promote a better, more natural running form.
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Outsole
The MAXTRAC outsole is specially designed to provide excellent grip, traction, and durability. The TRAILCLAW technology features specially angled lugs positioned under the metatarsals, which improve grip on all surfaces, even muddy trails. The FOOTPOD™ technology further enhances flexibility, allowing the outsole to adapt to the bones and tendons of the foot, improving movement and allowing for freer foot placement while running.
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The Superior 4.5 is only 21 mm thick, and Altra has included a STONE GUARD plate to protect against impact on highly technical terrain (or rocky trails).
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Altra Superior 4.5 Overview
A trail shoe designed specifically for racers. Its lightweight construction provides exceptional agility, while the 21 mm thickness makes it ideal for runners who want precision foot placement on races up to 50K.
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