Abstract: A vest sizing device including a shell member having associated therewith a plurality of rule scales and rule index members that cooperate with one another to provide a plurality of girth dimensions for a four-legged animal by longitudinal position. The shell member when configured for use defines a plurality of openings including a neck opening, an abdominal or rear opening, at least one leg opening, and an access opening.

Abstract: A vest for canines or other animals is provided. The vest includes a jacket that includes a top member and a bottom member with portions releasably secured to one another. One or more expander panels can be provided to be releasably secured between portions of the jacket to selectively change the girth dimension of the jacket. The vest may also be provided with devices for attaching various auxiliary items to the vest in a releasable manner. Carriage devices can also be provided for facilitating handling of the dog or other animal by its handler or lift devices. Such carriage devices can include loops adapted for attachment to shoulder straps, gripping by a handler's hands or by a lift device. Redundant securement devices are provided to ensure portions of the jacket do not separate unintentionally. The jacket is adapted for use with a tail harness and the collar is adjustable to prevent the vest from slipping off the canine or other animal.

Abstract: A vest sizing device including a shell member having associated therewith a plurality of rule scales and rule index members that cooperate with one another to provide a plurality of girth dimensions for a four-legged animal by longitudinal position. The shell member when configured for use defines a plurality of openings including a neck opening, an abdominal or rear opening, at least one leg opening, and an access opening.