Dplolng Baseball Caps Inserts,Felt Hat Sweat Liner Hat Insert to Keep Shape

Protect, shape, and refresh your favorite headwear with the Dplolng 12pcs baseball cap inserts. Each hat sweat liner is cut from breathable polyester felt, offering a soft, low-profile shield against sweat and moisture. Unlike flimsy disposables, these liners are washable and reusable—just hand-wash or machine-wash, air dry, and they're ready for your next outing.

Use them as a reliable sweat guard for hats to block perspiration, oils, and makeup from staining the inner band and crown. The thick yet breathable felt keeps you dry while preventing odor and discoloration, so your caps look newer for longer.

Beyond moisture control, every unit works as a flexible hat shaper insert. It supports the brim and crown, restoring the crisp structure of baseball caps, snapbacks, and fedoras. The insert can be trimmed to achieve a personalized fit for head sizes of 22–23in (55–58cm). These hat sweat liners hat inserts are available in two sizes—small (26×10cm/10.23×3.9in) and large (29×12.5cm/11.4×4.9in)—with a total of 12 pieces: 3 small white, 3 small black, 3 large white, and 3 large black.

This complete sweat protector hat stiffener set is perfect for daily wear, sports, outdoor work, or travel