Specialized men's Aku Selvatica Mid GTX trekking shoes. They will work in literally any terrain and weather conditions. They have been designed to withstand even the longest and heaviest hikes and expeditions conducted by the most experienced globetrotters. The shoes combine modern design with a number of technologies ensuring both comfort and safety of use in difficult mountain terrain.A special, light yet durable construction of the outer upper made of breathable textile material is based on the Gore-Tex membrane. Due to the high upper, it provides greater safety and at the same time does not completely block the ankle and allows you to quickly move the foot in the heel-toe plane. The inner upper is equipped with a soft textile material that guarantees high comfort in all conditions. The whole is complemented by a mega-durable outsole with an aggressive tread made of wear-resistant rubber.Technologies used in footwear include:EVA: the name EVA comes from the English name of the compound Ethylene-Vinyl Acetate, from which a material with a foam structure is made, widely used to make soles. EVA is a copolymer of ethylene and vinyl acetate - a very light, flexible material, frost and abrasion resistant, durable and with a porous structure. Most often found in sports footwear, but used in virtually all types of footwear. Soles made of EVA material are light, have shock-absorbing properties and are flexible.Vibram: the most famous type of sole used in trekking shoes; it has anti-slip properties, abrasion resistance and combines shock absorption with the latest biomechanical technologies. The solutions used, e.g. self-cleaning sole channels, rotation zones and anti-slip surfaces, guarantee safe and comfortable activity on the trail.Ortholite: material used to produce shoe insoles,