Strap width is key
A nice, inexpensive, helpful tool for your CamelBak arsenal IF all your packs have 1/2" webbing on the shoulder straps. Unfortunately every single pack I own with one exception, from day packs to full-on backcountry packs, have 3/4" webbing on the straps. Thus, the Tube Trap doesn't fit completely. You can still slide them on, but the clip doesn't close completely around the wider webbing, which can lead to problems in the field. Why wouldn't they make it to fit 3/4" webbing, which would also accommodate the smaller 1/2"? Makes sense...but they don't. Too bad, a good idea not taken to its logical conclusion.