NEW ERA CAP LINER Liner Sweatband Tape Stain Prevention Odor Elimination Antibacterial 100% Authentic Genuine Color: Black Size: Width 270mm x Height 25mm Material: 100% Polyester This liner is applied to the sweatband inside the cap to provide antibacterial and deodorizing effects. Includes 1 liner and 10 double-sided tapes. Purchased at the Shinjuku directly-managed store.