Vapur & Platypus bottles

ccmccoy09

Has anyone used these before? I hate running with my empty bottle on a long run. The idea of being able to collapse my water "bottle" and shove it in my armband when it's empty is nice. Most of the reviews out there are from backpackers and frequent travelers. Any runner reviewers?

roadrunner32

Personally I've never used one, mine is this:
http://www.londonmarathonstore.com/acatalog/adidas_3_bottle_belt.html

A fantastic product!