Eco Message Bottles 20oz No Weird Taste: Non-toxic baked-on inner-lining does not impart odors or tastes&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Lightweight but Strong: Weighs no more than a plastic water bottle&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Leakproof: Seamless construction made from a single piece of pure aluminum&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cool Designs: Sigg bottles are as good to look at as they are to drink from. Baked on powder coat finish lasts for years&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Recyclable: Sigg bottles are pure aluminum and recyclable when they finally require replacement