Please refer to our size information carefully before you order it: Chest(CM/Inch)--XS:30cm/11.81', S:35cm/13.78', M:40cm/15.75', L:45cm/17.72', XL:50cm/19.69'; Body(CM/Inch)--XS:20cm/7.87', S:25cm/9.84', M:30cm/11.81', L:35cm/13.77', XL: 38cm/14.96'. please choose the size mainly according to chest information since it's a two-leg outfit. Attention: when you measure your dog body length, don't include the tail length, and this dress is only suitable for small dogs. The clothes is made of cotton which can help to keep pets warm and comfortable in cold weather or in wet environment. It's suitable for pets to walk in the outside when it is cold. The cotton clothes keep your pets warm and dry. The long nose elephant style make this clothes look special and make your pets look lovely. The clothes can protect your pets in cold and wet environment. It's easy to carry ,so you can carry it on your leash or stow it in your car. Suggest handwashing, the accesories are not given freely.