>>2222660Depends what I'm doing, that pack is pretty much dedicated to dog adventures though. Pack itself has 1.5L water bladder, two 3L bottles, chem lights, S-Biner, battery operated stick light, dookie bags, spare leashes (50 ft and 6 ft) and collar, collapsing dog water/food bowls, multitool, human first aid kit, Dog IFAK/first aid kit, pack rain cover, dog towel. Depending on what we are doing it will have food, treats, extra layers of clothing/packable rain layers, whatever else we can fit and would need.
Fanny pack has headlamp, handheld flashlight, dog treats, spare batteries and room for additional stuff like keys, phone, wallet, spare magazine for handgun, etc.
On a somewhat related note, Osprey's LT bladders come with a really cool magnetic mouthpiece coupling system. Works really friggin' well tbqh and is pretty clever. Can be positioned anywhere that has a strap that will fit.