Your Doggie will look great in this shirt Comes in 5 sizes 100% Cotton Also available in gray in our ebay store Keep in mind they run very small, our 12 lb shih tzu wears a size Large Small will fit:Neck: 8-9″Chest: 12-13″Length: 8″ Medium will fit:Neck: 9-10.5″Chest:13-15″Length: 9.5″ Large will fit: (our 12 lb shih tzu wears this size)Neck: 10.5-12″Chest: 15-17″Length: 12″ X-Large will fit:Neck: 12-13″Chest: 17.5-19″Length: 13″ XX-Large will fit:Neck: 13-14″Chest: 19-21.5″Length: 15″.