According to the merchant's instructions, it appears that the Zipper Long Coat may run small. The material used for the coat is polyester and it features long sleeves and a regular length for the clothing. The style is sweet, and it has a regular fit with an element of split joint. The coat also has a patchwork pattern and is stitched in a unique way. The sleeves are regular, and the neckline is a mandarin collar. The overall weight of the coat is 337g. This information is based on facts and domain expertise, providing an informative and objective description.