The Atlas Athlete camera backpack is one of the best camera bags I've found that can both hold camera gear and enough additional gear for a full day outing in the backcountry.

The LowePro Whistler BP is a very durable and well-constructed camera backpack that will keep your gear well protected. The pack is quite heavy and for that reason, it is not my first choice when needing to carry gear for many miles or long periods of time.