DescriptionHighlights: This backpack is made for multiple days hiking or trekking in autonomy. You can carry everything you need to camp, drink and eat on your back with comfort. The MT500 AIR only weighs 3.7 lbs and can contain a total volume of 50 liters which we recommend for a trip over 2 weeks long. The top of the bag is adjustable and can hold an extral 10 liters of volume. This backpack has plenty of features if you are looking for a technical option at a fair price: AIR concept back ventilation, rain cover, water bottle holder, hiking poles holder, 8 pockets and a compartment for a water bladder for easy hydration. The AIR concept: in order for your back to dry faster, we added a mesh on top of a ventilated structure. Ideal for long and sweaty day hikes from one camp to another! This is a men's backpack: This bag has been conceived for a masculine morphology (torso and hips). We recommend to consider the users physical morphology when you choose a bag for comfort purposes when carrying it on your back. 10-year warranty: the fabric of the bag is ultra resistant and Decathlon is proud to offer this warranty for any defect that could appear in the next 10 years.