Works great, easy to use!
Bought a couple of the 1L Platypus soft bottles as an alternative to using traditional hydration bladder. Also bought this hydration tube kit that allows you to use these bottles just like a hydration bladder. I like the simplicity and the fact that as bottles they are easy to fill and are collapsible. Stuff them in my pack and use with the hydration tube they are just like my old hydration bladder but better! I'm definitely going to be using this system at the Barkley Marathons later this year representing the Wasatch Speed Goat Mountain Racing Team.