Here's a look at how I carry water when I'm out on the bike. I use a Giant Loop Cactus Canteen and an older military surplus CamelBak. There are loads of options, but this is what I've found works well for me.
I love my Giant Loop cactus canteen. Rolls up into nothing and holds a gallon when I need it. I also use a 2 liter bladder in my MSR Xplorer jacket.. and have hiked hundreds of miles with my Osprey 3 liter bladder. I do like staying hydrated. Good stuff Mayo. Keep ‘em coming.