The ALP TRAINER 35+3 is our technical alpine hiking backpack for two- or three-day tours. It is equipped with our new Dry Back Air carrying system, specifically designed for a dry back. The contact area of the backpack on the back is therefore 25% smaller than with previous carrying systems, reducing body contact without compromising load control. Its built-in ventilation system with breathable materials enhances air circulation on the back. This noticeably reduces the temperature between the body and the backpack by 1.6°C after just 15 minutes. Our lightweight, split shoulder straps also reduce body contact for faster moisture transport, greater comfort, improved air circulation, and freedom of movement. Additionally, the Twin Compression System (TCS) allows for easy compression of the backpack with one hand, keeping the load close to the body and preventing tripping during fast activities. It also enables quick and easy adjustment of the backpack's volume when carrying less. We have equipped the ALP TRAINER with all the essential features and eliminated the unnecessary: it has easily accessible mesh side pockets, a rain cover, a separate bottom compartment, and attachment options for trekking poles.