Awesome answers guys!
Ive only recently returned to the MTB world, when I was a young fella I rode Trails on my Trusty GT Rebound! Usually with a Camelbak and underseat bag. But these rides were usually 3-4 hours once you factored in riding to the trail (to young to drive). When I was able to drive I went into DH and never rode with a backpack and all spares were in the car, reason being no time to repair on trail, your in a race if you flat your out, chain breaks well guess what no brakes, maintain speed!
Now returning to trail riding with a new Canyon Spectral and doing these Superflow events there seems to be a cross over between both trail Rides and DH.
Looks like im turning into an Enduro Bro, Bumbags/Fannypacks all the way BRAH’s!!! Lets get gnarly.
PS. Thanks for all the replies I actually ordered one of these last night
https://www.raceface.com/products/details/rip-strip-lumbar-belt along with a cage and bottle for my smaller 1-2 hr rides and will buy a Hydro Backpack when I go on an Adventure!