Altra Men's Instinct 4.5 Running Shoes
The Altra Instinct 4.5 features a brand new engineered mesh upper and updated midsole for comfort and durability. The outsole is now made of full rubber for enhanced durability, and the insole is one piece for a better underfoot feel.
Engineered Mesh Upper
The upper of the Altra Instinct 4.5 has been constructed using engineered mesh, to deliver exceptional breathability and moisture-wicking properties. The mesh actively and efficiently wicks away the build-up of excess sweat and moisture to leave your feet feeling cool, dry and comfortable as you strive for the best results and performance. Additionally, cool air is encouraged to circulate, creating a drier, healthier environment for your skin to thrive. As well as providing breathability, the mesh is resilient to protect your feet from abrasion and friction, to further enhance the comfort.
A padded tongue sits comfortably against the skin and guards against irritation such as chafing while a traditional lacing system offers a secure, locked-in feel while you run. The FootShape toe-box adds durability and protection to a potentially susceptible area, especially if running on slightly unpredictable terrain. Rounding off the upper is a 3D print design, adding a sleek, fashionable look to the shoe.
EVA Midsole
InnerFlex EVA resides in the midsole for lightweight cushioning and comfort. Having the cushioning enables you to efficiently propel through the gait cycle for a more responsive ride. Plush, EVA cushioning reduces the wear and tear placed on joints, lessening the potential risk of injury in susceptible areas. The fully cushioned zero drop platform keeps you comfortably running with proper form, even on fatigued legs.
Full Rubber Outsole
Full rubber has been used in the construction of the outsole to deliver optimal grip and traction, to give a firm, assured footing and a full, unrestricted range of motion. Ideal for road racing and speed training sessions.