IceMule Coolers are a soft cooler that can be carried over the shoulder. They can keep drinks cold for 24 hours and they are zipperless, so they can float!!
Insulated Growlers by DrinkTanks
A DrinkTanks growler is cast from high-quality 18 / 8 stainless steel and has double wall vacuum insulation. The BPA-free polycap is secured by a sturdy dual bail cap system that is leakproof and keeps the content cold for 24+ hours and hot for 12+ hours.