@Thebigtim , that is a jumbo tactical shoulder bag made by emerson, it's a knock off of the maxexpidition jumbo versipak, it is in my opinion the best pack for those who climb using bolts, it has a concealed carry pocket on top and all my bolts go in and out of it easily and stay quiet, I carry everything else I need right at my right hand, including my drill, saw, clippers ,rangefinder, release, etc. Been using this type of pack for a few years and I think it works perfect for a bolt climbing saddlehunter!