Altra W Escalante 4

Engineered mesh: Advanced technical knit designed to serve different functions in various parts of the shoe. Unlike traditional mesh, this material is made with variable fiber density from a single piece of fabric. In areas where the foot needs stability (e.g., around the heel), the knit is dense and firm. Conversely, in zones with high thermal load (e.g., over the toes), the knit's openings are larger for maximum breathability. The result is a seamless construction that minimizes the risk of chafing, maintains shape, and rapidly wicks moisture away from the foot.

Standard FootShapeTM Fit: There is a middle ground within the three different hoof widths that the Altra brand offers. This technology respects the natural shape of the human foot by providing a roomy toe box. This allows the toes to spread naturally when stepping and the big toe to remain in a straight position for maximum stability and a strong rebound. The "Standard" version is the most widely used option that fits most runners - offering plenty of room for comfort and natural biomechanics, while still providing a secure and tight fit in the midfoot and heel.

Altra EGO™: Premium midsole foam designed for runners demanding maximum cushioning without compromising speed. This compound offers a luxurious softness that saves joints even on very long runs, while delivering high energy return. It is lightweight, durable and holds its properties superbly for hundreds of miles. Combined with zero drop, it provides ultimate comfort, stability and a smooth, dynamic rebound on any terrain.