yellow baseball hat

The listings show a mix of materials: 100% polyester, an 80% polyester/20% cotton blend, 100% cotton, and 100% nylon.

Reported ranges vary by listing: brim lengths range from 0 inches up to 6.5 inches, and crown heights are roughly 3 inches to 5 inches.

Care instructions vary by listing: many recommend hand washing and line-drying or lay-flat drying; some specify spot or wipe-clean with line-dry; one listing notes machine wash with tumble dry.

Most listings use adult/one-size descriptions with adjustable straps or closures. Examples given include an adjustable strapback that fits about 20–24 in heads, an explicit sized range of 56–58 cm (22.05–22.83 in), and one listing that shows a hat circumference of 22.75 centimeters.

Several listings highlight breathable materials (breathable cotton or breathable fabric) and include breathable eyelet holes for ventilation.

Most listings describe a curved or pre-curved brim for sun coverage. Brim lengths vary across listings, and one listing reports a brim length of 0 inches.

Common claims are adjustable or "one size" fits most. Reported examples include adjustable strapbacks that fit about 20–24 in heads, an explicit range of 56–58 cm (22.05–22.83 in), and a listed hat circumference of 22.75 centimeters.