These are the Original Sham Sweatbands not cheap knock offs. They have a special foam core that has been tested to hold 1/4 cup of water. The special material used has HGT (Head Gripping Technology) built right in. As the material gets wet, it does not slip like terry cloth does, it actually grips the forehead just a bit. Holding your mask in place better, especially late in the game Made in America Professionally sewn Very durable Just wash with jersey, socks, etc and hang to dry; NO dryer Used World-Wide at every level of the game Sham Sweatband - Sold Individually, Thick, Yellow MS1153810 MS1153810