Think Tank Digital Holster 50 Expandable Shoulder Bag V2.0

Fast reliable service -bag is a great product -tough -well made and comfatable to use-love the option of shoulder strap and belt loop

Very well made bag but not that much protective padding. One of the few bags that I found which holds a long lens on a full size dslr with a battery grip fitted. I use it with a Canon EOS 7D Mk11 with a battery grip and a Canon 400mm f5.6 L series lens but to accomodate this I have the bottom extension (which is not padded) down. It will also fit with the Canon 1.4 extender fitted. There is one small pocket which accomodates a weatherproof cover and another which is only big enough to take perhaps the lens cap and an SD card. Unfortunately the pocket is not big enough to take a spare battery but having said that I don't normally need a spare with the battery grip fitted. I think my lens is about as big as this bag will take so if you have anything bigger look elsewhere. I've also got a Lowepro rucksack which takes the camera, lens and a lot more and as I usually carry the camera on a cross body shoulder strap so that it's quickly available for bird shots, I think the rucksack will probably get more use than this bag.