These are the original Czech Army issue metal M60 canteens(0.8 liters). They come with a wool cover for insulation and a leather strap that you can attach to your gear. They come mixed with either a cork or plastic top and the wool covers vary in color. They're great to take hiking, backpacking, to a festival, or on a road trip. You can't beat the old look and feel of this canteen nor its functionality. The wool cover is both soft on your hands and insulating.