The Repack bag from Camelbak is a perfect choice if you want to carry both a bladder and some tools but don't want a backpack.

The bladder is 1.5 liters and uses the CRUX system, just like all other bladders from Camelbak.

??The advantage of a hip bag is that the weight sits lower on the back, which gives a little more stability on the bike.

There are zipped pockets on both the bag and hip straps.