My tank bag has ports in the sides for headphone wires etc. I bought a bladder only,and put it in the tank bag. I run the hose out one of the ports. The hose is snug enough that it remains upright when turned the right way, I took that annoying bite thing off the end and get satisfying gulps.it does not leak because the hose end stays higher than the bladder in the bag. There's still plenty of room in the bag for other items. Happy Trails