This is my first GoPro and hence wanted to buy a good bag. I am a fan of Amazon basics and liked their bags but wasn't sure of the size. But one thing I knew that my GoPro accessories will increase with time. Hence chose the large size. Well it's a bit large in comparison to gopro itself but I think this will be a good fit who wish to organise all their GoPro accessories in one bag. The smaller sizes are good for more professional GoPro users who are more aware of what exactly they will use the camera for. However for a first timer like me who would like to test and try the camera and will need most of the accessories around this is a brilliant buy. Hope this helps.