Deciding what information to include on a hang tag or a garment's care and content tag can be frustrating. There are certain legal requirements for care and content tags of items sold in the United States and that can be found at the Federal Trade Commission website.
Let's start with the care/content tags. Let's assume that you have complied with all of the legal requirements. What else should go on your care and content tag? The answer is as little as possible. The tag has a finite amount of space, and it must be legible. But there is some critical information that will help the consumer pick just the right size.
Sizing information is one of those things that should be on the tag. For children's clothing it helps to put not only the size but also the weight. It would be nice to also include the height, but I rarely see this done in the US. I have seen the sizing information arranged different ways. For example, it could read like this: 0-3M (7-12lb).
This additional bit of information is very important to consumers. Even though we use a size system that designates an age, children come in all shapes in sizes at each stage of life. Ever hear of a newborn weighing 9lb? A newborn weighing 9lb at birth will weigh 12-15lb at about 3mo, and quickly move into 6mo clothing. Including the weight on a tag helps take out the guess work for the consumer. And don't forget every children's company breaks their sizing down differently. A 3mo outfit from one company will not be the same size as a 3mo outfit from another.
If there isn't room on a care/content tag for additional information, then it is helpful to include it on a hangtag. BabyGap has sizing information available on a card that is the size of a business card and it can be stuck in a wallet. What a great service for the customer! Not to mention, it probably helps reduce returns.
Most moms know the height and weight of their baby. They are given this information when they visit their pediatrician. The doctor will compare the baby's height and weight with a growth chart to make sure the baby is growing properly. When reworking my patterns for my TinyPackages line, I referred to these growth charts to make sure I was on target.
If you have an online store, a size chart that includes basic height and weight information will greatly help your customers.