Has anyone tried a Platypus collapsible water bottle? I was wondering how well they actually worked.<br><br>They're available from http://www.magellans.com/. Access the URL and search on "Platypus."<br><br>The blurb says: "It's made of durable plastic laminate that is guaranteed not to leak or flavor your water. It's guaranteed to save space, too, rolled-up and tucked into your pocket or pouch when empty."<br><br>They might make a good accessory for a PUR Scout.<br><br>