vanven, I had a fusion vest and recently changed to a fishpond pack that looks similar to the simms you posted. I LOVE my fanny pack and dont think I could ever go back. I purchased the fusion used and when I filled it up, it still bothered my back, so I sold it on ebay for more than I paid for it and purchased the fishpond at the recommendation of fly shop in Cotter Arkansas. It holds all of my gear and when I am not using it, I slide it around back. As Dano recommended, I purchased a magnetic net ring. The fishpond comes with an optional strap that allows it to be worn as a chestpack if you are wading in deep water. It is expensive ($75), but I have had mine for a year and it works great!