COLLAPSIBLE ONE QUART CANTEEN. Currently being phased into service this canteen is made of super strong flexible plastic which allows for air to be squeezed out as water is used thus no more sloshing of a half full canteen. Being soft and flexible it helps prevent injuries when landing on your side and it also makes a half descent pillow. Same size as the standard canteen so it fits in any GI 1qt canteen cover and mates perfectly with canteen cup and stove. Available in OD, Black, or Desert Khaki. NEW.