Review on Moki Kids Hydration Backpack Sparrow by Julian Perkins

This was a good backpack for my 8 year old son to mountain bike and I used it once too (5ft). 6" female, 140 lbs). My only complaints are that the bite valves are flimsy (they broke on 4th use) and there is little room in the packaging for anything other than a bladder when filled with water. It could included a snack and maybe some keys/money and when he gets the extra tube we'll have to get creative and actually push it there over the bladder (not perfect as I'm concerned the stem of the spare tube might puncture the bladder) .or the fabric of the backpack).