Dual-Purpose Sweat Guard & Hat Shaper: Use these inserts as both a sweat barrier and a hat stiffener. They prevent unsightly sweat stains and sagging, ensuring your cap stays fresh and retains its shape—no glue or stitching required.
| Pattern | Solid |
| Occasion | Casual |
| Size | One Size |
| Color | Black |
| Material | Cotton |
| Fabric Type | Felt |
| Brand | Xinjoduz |
| Department | Men |
| Unit Type | Unit |
| Style | Baseball Cap |
| Theme | Sports |
| Season | Summer, Spring |
| Country Of Origin | United States |
Dual-Purpose Sweat Guard & Hat Shaper: Use these inserts as both a sweat barrier and a hat stiffener. They prevent unsightly sweat stains and sagging, ensuring your cap stays fresh and retains its shape—no glue or stitching required.