Abstract: A wearable device for spinal decompression of dogs or other quadrupedal animals. The preferred embodiment of the device comprises front and rear harnesses of flexible material extending around the animal's torso, curved members attached to the front and rear harnesses and lying along the animal's body, and rigid extensible braces connected to the front and rear curved members, generally parallel to the animal's spine. The harnesses, braces, and curved members are selected or can be adjusted to fit the animal. The extensible rods are adjustable, with means to produce therapeutic decompression and support of the animal's spine between the front and rear harnesses.