AirZone Camino Trek 40:50 Ventilated Hiking Backpack - Unisex On strenuous hikes in the wilderness or long summer days on walking tours, the AirZone Camino Trek 40:50 is a trekking and hiking backpack that keeps you cool and comfortable, wherever the trail may take you. With a ventilated breathable back, the Camino Trek is ideal for day hikes and lightweight overnight backpacking. With a breathable back to maximise airflow, the Camino Trek 40:50 is hydration compatible, including stretch water bottle side pockets, TipGripper walking pole attachments, ice axe loops, and double side compression for stability. An internal lid pocket keeps valuables safe, while hip belt pockets mean essentials are accessible on the move. The AirZone Camino Trek 40:50 features top entry, zipped front panel, and base entry with zipped divider panel for easy access. An extendable lid increases the volume by an extra 10 litres, large bellows side pockets provide additional capacity, and the versatile SpiderPlate bungee system allows secure external storage. Whether you’re moving fast in the hills, on a long hike, or just out on a hot day, the AirZone Camino Trek 40:50 keeps you cool and comfortable. Features: Ideal for: Hiking Volume: 40 + 10 litres Back System: Fixed AirZone Back Length ( Place your hands on your hips and tilt your head forwards. Ask a friend to help you measure from your C7 vertebrae (the bony protrusion at the back of your neck) to your iliac crest (the top of your hips). This measurement will give you an idea of which back length to choose for the best fit): Reg Size (M): 46cm  /  18.11in Large Size (L): 51cm  /  20.17in Dimensions: Reg Size (M): 68 x 30 x 30cm  /  26.77 x 11.81 x 11.81 in Large Size (L): 68 x 31 x 31cm  /  26.77 x 12.20 x 12.20 in Weight: Reg Size (M): 1.53kg  /  3lb 6oz Large Size (L): 1.6kg  /  3lb 8oz Volume: Reg Size (M): 40+10lt  /  2440+610cu.in Large Size (L): 40+10lt  /  2440+610cu.in ​Technical Features: Secure internal lid pocket Secure TipGripper walking pole attachments Side compression straps SOS panel Sternum strap with whistle Stretch water bottle side pockets Versatile SpiderPlate bungee system for secure external storage Zipped front panel allowing easy access to contents of pack Rain cover Lower side compression can be routed inside or outside bottle pocket AirZone breathable back maximising airflow Bellows side pockets for additional storage Extendable lid to increase volume by an extra 10 litres Forward pull hipbelt adjustment Hipbelt pockets Ice axe loop Key clip Lower entry with zipped divider panel