Originally Posted by
Carbonfiberboy
When it's below freezing, always blow back to clear the hose after drinking.
been there, done that, with an insulated cap and hose.
still had issues, and pretty sure that is what caused the bag to leak.
i know some of the iditasport kids use hydro bladders, but i'm pretty sure they are running them under jackets and out sleeves. something i have not tried.