Finnish Army current model canteen. A very practical water bottle with a large opening and a metal hook for carrying without a pouch. You know this piece of kit is pretty good because the soldiers don't complain about it.

This has a few advantages compared to its peers. First, the mouth is large and the threads too. This means the bottle is easier to fill, easier to clean and resists freezing a tad better while the cap screws on the right threads easily. Second, The rectangular shape makes this easier to pack and use in general. Third - it still is almost exactly the same general size of the classic US 1 quart bottle, so it fits in the same pouches (M56, ALICE and such).

As a funny tradition, this has a metal carrying hook on it. It's better than nothing, but not really THAT useful if you have a pouch.

Made by Plastex, made in Finland. These are made with strict quality control of proper plastic. If you need a solid, simple plastic water bottle, can't go wrong with this.