The Doggy Dickey Fleece Neck and Chest Warmer for Small Dogs, X-Small, Neon Green Chest size 13-17.5 Inch Example breeds: Chihuahua, Maltese, Miniature Dachshund, Toy Poodle, Yorkie Fits over harness or collar & under any coat Perfect for thin coated, small & senior dogs who easily become cold Neon color visible in low lighting