MR.Jiang Blue High Quality Sleeveless Puppy Pet Clothes The USA Flag Vest Dog T-Shirts Apparel Size: XS,Length:18cm/7.1inch;Chest:31cm/12.2inch;Neck:20cm/7.9inch; Size: S,Length:24cm/9.4inch;Chest:37cm/14.6inch;Neck:25cm/9.8inch; Size: M,Length:29cm/11.4inch;Chest:43cm/16.9inch;Neck:28cm/11inch; Size: L,Length:36cm/14.2inch;Chest:46cm/18.1inch;Neck:36cm/14.4inch. Make your dog look cute and lovely The size is small, suggest you buy a bigger one Please make sure to measure your dog for accurate sizing before purchasing to ensure the perfect fit.The size is manual measurement, there may be 2-18cm error.Please understand. The actual color of the item may slightly vary from the pictures due to the light and different monitors.