Slightly Different...
But I use a Belstaff Celcius Jacket and a hydration system from Platypus.
The Platypus bottles have a corner mounted hose , and fit into the back pocket of the Belstaff. As they go in sideways the hose is at the bottom maximising the fluid available.
The hose then runs up my right side through some loops already on the jacket and the bite valve is positioned just inside my lid if I have an MX lid on , or just at the point it can be reached for a quick sip at lights and junctions for road use.
I have used it this way , both off road and on road.
Cheap as chips and unbursatble - Millets usually sell them in sizes from 1 litre to 2.2.