It depends on how you are going to use the bag. If the purpose is to just transport your gear from one place to another and you will only be wearing it for a short time, the type of bag you are looking at is OK. However, if you will be wearing it for most of the day and for the amount of weight you are going to carry, I would highly recommend a backpack with a frame and a good load carrying belt. It will take the weight off your shoulders and allows you to carry it on your hips. These will tend to look like hiking backpacks, but there is a reason those look the way they do, they work. F-Stop makes some and also Click Elite And many others. If you are taller than average look for a model with an adjustable height or that the height is long enough that the belt will be located on your hips properly.