1.Yes, fitted baseball caps can stretch out over time.
2.How much they stretch depends on the materials they're made of and how they're made.
3.Natural materials like cotton and wool will stretch more than synthetic materials like polyester and nylon.
4.Natural materials like cotton and wool will stretch more than synthetic materials like polyester and nylon.
5.There are a few methods you can use to help stretch a fitted baseball cap, such as wearing it often, stuffing it, or using a hat stretcher.