ELI5: Explain Like I'm 5

Sleeveless shirt

A sleeveless shirt is a piece of clothing that you wear on the upper part of your body. It's a lot like a regular shirt, but it doesn't have sleeves attached to the sides. So instead of covering your arms, your shoulders and upper arms will be bare! It's a great choice for when it's hot outside and you want to stay cool. Plus, you have the freedom to move your arms around without pesky sleeves getting in the way.