Can you fill it with water and is there a straw like camel bak??

Stays put, and is comfortable - don't even think about it being there while riding. I can fit pocket chainsaw, iPhone, small raincoat, Clif Blocks into the available pouches. The cargo straps look iffy. Won't stay hooked unless pulled very tight, and we all know things shift around quite a lot while riding, so I'm concerned they will come loose and catch on rear wheel. Biggest complaint is the neoprene bottle holder is not rigid enough, so when I go to stow my water bottle it folds down. I have to stop to get two hands on the pack to stow the bottle.

Great fit, great quality, and perfect for shorter outings.

It fits all of my items perfectly whilst also carrying a water battle. I think it’s a great solution for riders who only need to carry the bare essentials.