Abstract: An animal restraint unit adapted to be worn by the animal and, in its simplest form, comprising a collar, a waistband and a pair of elonaged, rectilinear, lateral pieces pivotally and releasably connected at substantially diametric positions to the collar and to the waistband and adapted to extend therebetween along the animal's sides. The collar and waistband, together with the attachment thereto of the lateral pieces, are adjustable to properly fit the animal. The restraint unit prohibits the animal from twisting its body laterally, thus preventing the animal from traumatizing posterior portions of its body which have undergone surgery or are inflicted which a dermatological problem. Similarly, the restraint unit prevents the animal from scratching anterior portions of its body. The restraint unit may be provided with a mandible engaging attachment to restrict lowering of the animal's head so as to prevent injury after ophthalmic surgery.