Been using a Camelbak Palos the last couple of months (comes with a wee water bladder), took a ride or two to get used to it and how tight to ratch it up, but much prefer it to riding with a rucksack now for anything up to an hour or two’s ride.
It’s pretty large, ergo loads of pockets and stashes – I’ve got tube, tyre levers, credit card, £10 note, tyre boot, chain tool, quicklink, wee mini multitool, CO2 inflator and a credit card in mine. Still loads of room for a massive phone and bulky set of van keys.
Pretty impressed with it so far.