This is a very sturdy bag. This bag is can be used in more than one ways. Following are the key points: air flow channels at the back are designed to help ventilate your back and delay the onset of your sweaty mess. The ridges are typically shaped to try to balance comfort with airflow and also reduce the surface area of your back against the backpack. In hot weather, though, they won't be able to prevent your back from getting sweaty. But at least they ll delay it. This bag has Molle which implies it is Modular lightweight load-carrying equipment and allows users to attached gear to an array of nylon webbing. sternum strap & Hip belt present, they both help in providing a snug and comfortable fit. Apart from provide support. Dual side compression straps present. This is 3 in 1 backpack is very unique. It can be used in 3 ways. It can be used as a shoulder travel Bag. It can also be used as a hand held travel Bag. When required you can roll up the flap, and attach it to the top creating an awesome looking backpack. This backpack can be used as camping backpack, travel Backpack, airplane backpack, hiking daypack, motorcycle backpack, range bag, hunting backpack, survival backpack, Army backpack, laptop backpack, Trekking Rucksack backpack or day pack for daily use.