OVERSIZED SOLID BUTTON DOWN SHIRTS WITH POCKETSComposition: Cotton The package includes 6 pieces. Size tags are in European standard. Please see the size chart available in the product photos. SM LXL 2XL 3XL To accommodate your US customers and align with European sizing standards, you can make the following adjustments: For US customers who typically wear XS S, you can provide them with Europe S M size. For US customers who usually wear M L, you can offer them Europe L XL size. For US customers