From a legal perspective, in most countries and regions, shoes must be labeled when sold in physical stores. These labels may include the following information:

1. The name or trademark of the manufacturer or distributor

2. The model or style of the shoe

3. Material composition

4. Size of shoes

5. Purpose or applicable occasions of shoes

6. Precautions or usage suggestions

7. Price or other sales information

The purpose of these labels is to help consumers choose shoes that are suitable for them, while also providing necessary safety and health tips. If the seller fails to label the shoes when selling them, it may be regarded as a violation of product quality and consumer protection regulations and bear corresponding legal liability. Therefore, when shoes are sold in physical stores, they should label them and ensure that the information on the label is accurate, clear and readable.