Salewa Alp Trainer 25 is a technical alpine hiking pack for shorter hikes, featuring new AIR FIT 2.0 carrying system that is designed specifically to keep your back dry. It has 25% less surface area contact than the previous constructions and reduces contact without impairing load control. Its built-in ventilation system with breathable materials lets greater airflow get to your back. This significantly reduces the temperature between the body and pack by 1.5°C after 15 minutes.