k o wrote an answer about Laken ISO Bottle on June 23, 2010
This is a vacuum sealed insualted, sweat-proof water bottle that I found online. You can check it out.
This is from the eco vessel site:
Our Eco Vessel insulated stainless steel water bottle is vacuum sealed with 2 layers of #304 grade stainless steel and is made to be used as a thermos for both hot and cold beverages, maintaining the desired temperature for several hours. Feel secure knowing that our 100% recyclable bottles are BPA-free, and are designed for your safety, ease of use, and convenience.