Stackable crate comprising: - a bottom wall; - at least one lateral wall (11, 12, 13, 14) provided with such an inclination that the crate has a tapered shape with increasing dimensions going from the bottom wall upwards; said at least one lateral wall (11, 12, 13, 14) comprising an upper edge (17a, 17b, 17c, 17d); - a compartment defined by said at least one lateral wall (11, 12, 13, 14) and by said bottom wall; - an upper opening that gives access to the compartment defined by the upper edge (17a, 17b, 17c, 17d) of said at least one lateral wall (11, 12, 13, 14); - at least one oscillating lateral wing; - hinging means between said oscillating lateral wing and one of said lateral walls (11, 12, 13, 14); said hinging means being configured in such a way that said oscillating lateral wing can be in a first retracted position, wherein said oscillating lateral wing is closed and the crate can be inserted in the compartment of an identical lower crate and a second extracted position, wherein said oscillating lateral wing is open in order to rest on the upper edge (17a, 17b, 17c, 17d) of at least one lateral wall (11, 12, 13, 14) of the lower crate, in such a way to stack the crate on the lower crate, wherein said oscillating lateral wing comprises; - a tab comprising a free end suitable for being disposed on an upper edge (17a, 17b, 17c, 17d) of the lower crate when said oscillating lateral wing is in the second extracted position; said tab comprising a second end connected to said hinging means; characterised by - moving means connected to the tab; said moving means being configured in such a way to slide in guide means provided on the lateral wall (11, 12, 13, 14) of the crate. - a bottom wall; - at least one lateral wall (11, 12, 13, 14) provided with such an inclination that the crate has a tapered shape with increasing dimensions going from the bottom wall upwards; said at least one lateral wall (11, 12, 13, 14) comprising an upper edge (17a, 17b, 17c, 17d); - a compartment defined by said at least one lateral wall (11, 12, 13, 14) and by said bottom wall; - an upper opening that gives access to the compartment defined by the upper edge (17a, 17b, 17c, 17d) of said at least one lateral wall (11, 12, 13, 14); - at least one oscillating lateral wing; - hinging means between said oscillating lateral wing and one of said lateral walls (11, 12, 13, 14); said hinging means being configured in such a way that said oscillating lateral wing can be in a first retracted position, wherein said oscillating lateral wing is closed and the crate can be inserted in the compartment of an identical lower crate and a second extracted position, wherein said oscillating lateral wing is open in order to rest on the upper edge (17a, 17b, 17c, 17d) of at least one lateral wall (11, 12, 13, 14) of the lower crate, in such a way to stack the crate on the lower crate, wherein said oscillating lateral wing comprises; - a tab comprising a free end suitable for being disposed on an upper edge (17a, 17b, 17c, 17d) of the lower crate when said oscillating lateral wing is in the second extracted position; said tab comprising a second end connected to said hinging means; characterised by - moving means connected to the tab; said moving means being configured in such a way to slide in guide means provided on the lateral wall (11, 12, 13, 14) of the crate.