The Airzone Trek 45:55, designed by Lowe Alpine, is a hiking backpack for men, ideal for accompanying you on your hikes in nature with comfort. Indeed, the Airzone Trek 45:55 ensures optimal comfort thanks to its Airzone +™ carrying system, which includes FormKnit™ technology that maximizes breathability, improves waterproofing, and minimizes the weight of your Lowe Alpine backpack. Additionally, the Airzone +™ system features a knitted back panel with a body-shaped ventilation system for maximum back breathability. Furthermore, the Airzone Trek 45:55 is equipped with a hip belt with a lumbar pad offering maximum comfort throughout your hike. Moreover, the Airzone Trek 45:55 allows you to carry all the necessary gear for a successful outing, thanks to its numerous compartments, as well as its TipGripper attachments for trekking poles and its HeadLocker ice axe attachment system. Finally, you will appreciate the Airzone Trek 45:55 for its 45 liters volume with its extendable flap allowing for an additional 10 liters in your Lowe Alpine hiking backpack. Highly breathable and very comfortable to wear, the Airzone Trek 45:55 is the one you need if you enjoy long hikes in hot weather!