Most of the Lowepro bags we have taken a look at have been smaller bags mainly used for small day trips or for going to conferences. Today we have the biggest camera bag we have ever looked at, the Pro Trekker 300 AW. This bag is made for outdoor photographers, extreme sports shooters and serious enthusiasts who need a workhorse backpack that travels well—in rugged terrain or by air. This bag not only fits your camera and accessories, but also your notebook. Let’s take a look at the Pro Trekker 300 AW and see if it is the perfect camera bag for you.