To provide a quadruped animal capable of absorbing shock by deforming a circle of a ring when the annular bumper piece protrudes around the face or head of the quadruped, and the bumper piece hits an obstacle such as a wall Bumper for foot animals.SOLUTION: Two body frames 1 to be mounted from the neck to the torso are provided on both sides of the body of a quadruped animal, and on the front part of each body frame 1, a substantially inverted U-shaped A front belt 3 is provided for erecting a neck frame 2 and connecting body frames 1 on both sides of the main frame 1 with slacks provided therebetween. The front belt 3 is detachably connected at the end or in the middle, A bumper piece 5 made of an annular elastically deformable material is projected so as to surround the front of the face or head of the quadruped from the tips of the body frames 1 on both sides positioned on both sides of the face of the foot animal, A rear belt 8 is wrapped around the body of a quadruped animal at the rear of the body frame 1 on both sides behind the animal's forefoot, and the rear belt 8 is detachably connected at at least one place.BACKGROUND OF THE INVENTION
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