Using this baby clothes set is a breeze. Simply dress your little one in the vest, then put on the coat and pants. When it comes to choosing the right size, always refer to the size reference provided. If your baby's size is in between two options, go for the larger size to ensure a comfortable fit. Before buying, double - check the size chart. If you have any questions, our customer service is always here to help. For maintenance, it's best to follow the care instructions on the label. Usually, machine - washing in cold water with mild detergent is a good choice. Hang it to dry to keep the shape and colors intact. Keep in mind that the color you see on your screen might be a bit different from the actual item, so don't be surprised by a slight variation.