These double wall, vacuum insulated, screw top stainless steel big bottles are fantastic for keeping drinks cold or hot for many hours.
They come with a silicone bumper (little cover for the bottom of the bottle), which can reduce impact and noise.
We use them of taking extra water with us when we are out, especially on road trips or walks in the hills.
They are also great for wine, juice or coffee, even mulled wine.
Made from stainless steel 304 food grade both inside and out, the best way to clean is to rinse straight after use and leave to dry, if needed use warm water and clean with a dish brush (not wire), really important to clean them as filling a dirty bottle will make the next drink taste bad.