The ventilated AirZone Trek 35:45 is the ideal mid-volume hiking backpack for long-distance summer hiking because it is light and comfortable. No matter how difficult the path, the AirZone Trek 35:45 offers a supportive, cool, and comfortable carry.

It has the unique FormKnitTM technology and our award-winning, fully adjustable AirZone ventilated carry system for all-day comfort.

The AirZone Trek 35:45 is made of durable, wear-resistant fabric and has a zipped front door for quick access to the main compartment as well as a divider panel to keep your night kit separate from your daytime gear. Trail-friendly features include upper and lower compression straps, specific attachments for your axe and walking poles, front and side mesh pockets for maps, coats, and water bottles.