Camelbak products are great in my opinion. I personally use the M.U.L.E at least 3 times a week while biking. I also have a RimRunner, which i haven't really used at all.<br><br>Reason: As with more camelbak's, there is a belt strap, on the MULE its optional(ie. can be removed) this isn't the case on the RimRunner, they are sewn in. The pack really isn't big enough to warrant that extra strap.<br><br>Also with the camelbak h20 volume is important.<br>The RimRunner is only 70oz. while the MULE is 100oz. That might be a personal preference issue, but for the money I would rather just go with a 100oz "Unbottle" and strap or throw that in a regular pack(Like a backpack).<br>The Peakbagger looks like a great pack for just getting out, holding your gear and enough fluids. Infact a friend is currently biking up the eastern seaboard with nothing more than a Peakbagger and his bike.<br><br>-David