Terry,

 

 

I've hung my CamelBack Unbottle 100 oz insulated bladder from any old metal sticking out on the back of various 'bents. I just use 1/8" nylon cord strings and tie them to the d-rings of the bladder and whatever I can find on the bike, ie seat stays, the rack, etc. And the insulation which is in the bladder's cover is sufficient.

 

I have also slid the bladder into various seat-back bags with no problems.

 

 

Louis