A technology that strengthens the fabric by placing additional and stronger fibres at regular intervals.

A sole with excellent grip, designed for use in both dry and wet terrain. The sole is highly durable and suitable for trekking, as well as hiking and travel throughout the season.

Altra EGO™ foam in the midsole provides the perfect balance of energy return and softness, resulting in a dynamic and comfortable running feel. Its responsive structure supports the natural movement of the foot, improving cushioning and step efficiency.

StoneGuard™ is a special insole by Altra that protects the feet from stones and sharp objects on the trail. Placed underneath the shoe's main insole, it provides extra protection without restricting flexibility of movement. This allows runners to enjoy greater comfort and stability on difficult terrain.

GaiterTrap™ is an Altra-branded system that makes it easy to attach stilettoes to trail shoes. A special Velcro fastener located on the heel eliminates the need for straps under the sole, effectively protecting feet from sand, mud and stones. This solution also allows for a convenient change of shoes or socks without removing the stuput, increasing comfort on the trail.