Good Camera Shoulder Bags?

Hey everybody. I am new to this forum and was hoping to get some advice a good camera bag. I'm a family and nature photographer. For my hikes I use my Lowepro back pack which is awesome but cost me about 300 bucks. I'm looking for something for my family sessions that I can keep on my at all times to carry lenses, batteries and cards. I am thinking about Kelly Moore, In Case, Undfind, or Swiss Gear. Do any of you have these bags and like them?