Lowepro make good bags, I have a few of their shoulder bags and backpacks. Keeping with backpacks, I have had a Mini Trekker AW since 2006, and despite the 'Mini' it can carry quite a lot of gear. Now I mostly use a Pro Runner AW, small, light, carries my D7100 and 4 lenses, but although it has tripod fixings a larger tripod (055P) isn't stable on it. I now have a need to sometimes carry a small laptop. Looking around I found the Compu Trekker AW , basically a Mini Trekker with a laptop compartment. I doubt these are still a current product, so I bought an 'authentic' Compu Trekker AW from China for around £36. Comparing the material and stitching with my original Mini Trekker it is built just as well, probably isn't but looks authentic. Time will tell how long it will last. It's a great backpack, and although I use a tripod far less than I used to, it will hold the Manfrotto 055P very stable with the same modification I did to the Mini Trekker. I abandoned the elasticated fixings as with them the tripod would at times wobble from side to side, especially if a large head is fitted. I bought a short black nylon strap with click together fastenings and now if I carry a tripod it's held rigid. I would investigate the Compu Trekker AW, I'm very happy with mine.