Protective Camera Case
The first thing you should look at when purchasing a camera bag is the size. You want one that will sufficiently accommodate your camera. If it is too large, the camera is likely to slide around inside the bag. This could be harmful to the device if the bag were to be dropped or received a sudden shock. If the bag is too small, it is likely the camera will not fit properly inside, leaving it prone to damage. Also, check the thickness of the padding. The thicker it is, the more protected your camera will be inside the bag.
Also, think about the accessories you want to carry along with your camera. A protective camera case should come with enough compartments for additional accessories. If you have a regular point and shoot camera, you can get by with a small bag that has 2-3 extra pockets for film, extra battery, battery charger, lens cleaning kit, and memory cards. If you have a digital SLR, you may need room for additional lens and other devices. This would call for a larger case made specifically for the more advanced camera that you own.
A good camera bag can protect your device from a number of potentially harmful elements. Make sure you get one that is waterproof in case you get stuck out in the rain with your camera. Also, this is beneficial in case something were to be spilled on the bag. A case will also shield it from the hot sun, though it is still not a good idea to keep the camera in direct sunlight for an extended period of time even when it's inside the case.
As you can see, it is important to invest in a protective camera case in order to protect your investment. Cameras are not cheap, and you don't want to replace the one you have sooner than you should. Having a camera bag will protect the device from things that could damage it, such as liquids, falls, or sunlight. They are also convenient because most come with additional compartments for camera accessories. Most camera bags are easy to carry, as they feature a long shoulder strap. This frees up your hands as you carry your camera with you.