ABOUT HYDRO FLASK Hydro Flasks originated in Oregon in 2009 and their mission was, and still is to provide the best adventure friendly bottles and accessories available. Starting with the humble bottle, Hydro Flask have become famous for their double wall vacuum insulation that protects the temperature of your drink. TempShield is used in all their products and guarantees that cold will stay cold for 24 hours, and hot will remain piping hot for 12 hours! With everything from lightweight trail bottles for the hikers, skiers, climbers and adventurers, to the ultimate camping set up with cooler cups, wine tumblers, coffee flasks and more. Not just for adventuring though, Hydro Flask have got your whole family covered, with stuff for the kids, lunchboxes for the family and even award-winning soft coolers for those epic beach trips and adventures. All their products are BPA and toxin free, use top quality 18/8 pro grade stainless steel so taste is not compromised. All caps and lids have a lifetime warranty, and a special outer coating on all Hydro Flask products gives you a sweat free, easy grip.