O'Brien's XS chart reaches pets up to fifteen pounds with a 13–20 inch girth, and the vest has a top zip, adjustable neck buckle, two ladder locks, reflective nylon handle, and leash ring. The price, current direct stock, and nine retailer reviews provide better commercial evidence than several mixed-pet entries. O'Brien itself describes the product for dogs, however, so a matching cat weight never proves a safe neck, shoulder, or torso fit and this option belongs only after cat-labeled models fail measured dry fitting.
