Altra Superior 4.5

The Altra Superior 4.5 features an updated upper with more durable materials, designed to withstand the rigors of trail running. The mesh construction provides excellent breathability and drainage, keeping feet cool and dry. The burrito-style tongue ensures a snug fit without causing irritation, contributing to the shoe's overall comfort.

The Quantic foam midsole of the Altra Superior 4.5 strikes a balance between cushioning and sensitivity. This allows runners to feel the trail beneath their feet, which can be both exhilarating and demanding. The inclusion of a removable StoneGuard insert gives runners the option to adjust the level of protection based on the terrain and personal preference.

While the Altra Superior 4.5's outsole features MaxTrac rubber with a Trail Claw design, its performance on slippery and muddy surfaces has been noted as suboptimal. The lugs, although strategically placed, may not provide the aggressive grip needed for more challenging trail conditions.

The Altra Superior 4.5 is known for its precise fit, especially around the midfoot, and a wide toe box that accommodates natural foot splay. This combination offers a comfortable and secure fit, reducing the likelihood of 'toe bang' on downhills. However, some runners may find the fit slightly snug, so sizing up may be necessary for those with wider feet or who prefer to use the StoneGuard insert.

Comfort is a standout feature of the Altra Superior 4.5, with its wide toe box and zero-drop design contributing to a natural and unrestricted foot movement. The shoe's lightweight cushioning provides enough support for moderate trails, while the updated mesh upper enhances comfort through improved breathability and water drainage.

The Altra Superior 4.5 offers lightly cushioned support, with a 21mm stack height (the amount of shoe material between your foot and the ground) that provides a close-to-trail feel. While the cushioning is adequate for moderate trails, runners seeking plush underfoot comfort for longer distances may need to look elsewhere.

The Altra Superior 4.5 boasts excellent breathability, thanks to its open mesh construction on the forefoot. This design choice not only keeps the feet cool but also allows for quick water drainage, making it suitable for runs that involve stream crossings or wet conditions.

The stability of the Altra Superior 4.5 is one of its strong suits. The zero-drop platform and wide toe box create a stable base that mimics the natural position of the foot, providing balance and control on the trails. The shoe's flexibility further aids in adapting to uneven terrain.

Durability improvements in the Altra Superior 4.5 are noticeable, particularly in the upper, which is constructed to resist tears and abrasions. However, the outsole's lug durability has been questioned, with some runners experiencing premature wear.

The grip of the Altra Superior 4.5 is suitable for hardpacked trails but may fall short in muddy or slippery conditions. The Trail Claw outsole design is intended to provide traction, yet it lacks the depth and aggressiveness of lugs found in other trail running shoes.

The Altra Superior 4.5 is designed for short to moderate distances on the trail. Its minimal cushioning and zero-drop design are ideal for runners who prefer a natural running experience. For longer distances, runners may want to consider shoes with more underfoot cushioning.

The Altra Superior 4.5 is best suited for hardpacked and moderate trails. Its outsole may not provide sufficient grip for very technical or muddy conditions. Runners tackling such terrain might look for shoes with deeper lugs and more aggressive tread patterns.

The wide toe box of the Altra Superior 4.5 allows for natural toe splay, which can enhance stability and comfort during runs. It also accommodates wider feet and provides space for feet to swell on longer runs.

The main difference between the Altra Superior 4.5 and the previous version is the updated upper material for increased durability and the addition of extra lacing eyelets for a more precise fit.