The real deal. Amazon (YETI on eBay) has a YETI Rambler 64 oz Stainless Steel Vacuum Insulated Bottle Sale, $39.99 Free Shipping. Expires Soon - $56+ on amazon. Rated 4.6 out of 5 stars.

• The 64 oz. Bottle takes insulation to the next level, complete with a double-wall vacuum to keep drinks cold or hot for hours.
• Perfect for remote campsites and harsh worksites alike. Unlike narrow-mouthed water bottles that are a hassle to fill or rinse, our Rambler Bottle features Over-the-Nose™ Technology for easy loading, drinking, and cleaning. And it’s BPA-free. In other words, the Rambler Bottle is the only insulated container for cold (or hot) beverages that’s built for the wild. 

• Free 30 day trial to Amazon Prime for Free Two-Day Shipping.
• Students get a free 6 month Amazon Prime Trial