1Pk. Baseball Cap Web Shaper Combo, Long Lasting Hat Liner for Snapback Caps| Flex Fit Caps| Ball Caps| New Era Caps| Lids Caps| Brim Crown Sport Caps| Hat Blocking Aide, FREE S&H ON 2 ORDERS OR MORE! Prevents deterioration on the inner caps fabric and avoids from feeling the caps brims inside edge. Our different color hat shapers and caps inserts will not bleed or stain the hats fabric. The hat shaper will not crack, curl-up and dry-out (unlike plastic). You'll discover the hat insert to have an incredibly secure and snug fit on the forehead and temple. Caps shaper alone reduces the amount of sweat running down the forehead by absorbing the moisture.