Available Sizes and Dimensions:
X-Small: Weight 8 lb; Back Length 6-9 in; Chest Girth 10-13 in; Neck 10.5 in
Small: Weight up to 15 lb; BackLength 9-12 in; Chest Girth 13-15 in; Neck 11.5 in
Medium: Weight up to 25 lb; Back Length 14-18 in; Chest Girth 15-20 in; Neck 14 in
Large: Weight up to 40 lb; Back Length 20-24 in; Chest Girth 20-25 in; Neck 17.5 in