Measuring Your Dog for a Perfect Fit 1.How to measure your dog? There is a picture to show how to measure your dog above,please check it. 2.If any of the measurements are 'between' two sizes, choose the larger size. If your measurements are toward the upper end of the range given for a particular size, you may also want to choose the larger size, as you may also wish to do for heavily coated dogs to accommodate all that fur. 3.Take each measurement a bit loosely. Take each measurement a bit loosely, so there will be room for your dog to move and breathe, but not too loose. (the measurement for Belly Bands is the exception -- it needs to be a bit snug) Please measure carefully before buying and email us if you have any questions about fit before you bid or make a purchase. Item Includes: 1PC Pet Clothes NOTE: It is manual measurement, there may be 2-3cm error. And item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. hope understanding. Pleas measure your lovely pets' size,then compare the actual data with the size chart in the "product description" to choose the most suitable clothes. Please make sure your pet will wear the clothes comfortably. If you are satiafied with our service ,please leave us a positive feedback ,it is very important for us,thanks for your support. TIPS:Your baby usually wears size S doesn't mean all size S will fit him/her!!!So please measure your dog and have a reference before your purchase according to the size map below Product Description(PS:According to our customers reviews,you can order the larger size)