The Serta Simply Clean Antimicrobial Solid Sheet Set is a three-piece bedding set that includes a twin extra long fitted sheet, flat sheet, and pillowcase. The sheets are made of a blend of polyester and microfiber and are machine washable. They are treated with antimicrobial and odor defense technology, making them hypoallergenic and stain-resistant. The off-white color and traditional style make them suitable for any bedroom. The Serta Simply Clean Antimicrobial Solid Sheet Set is a high-quality and comfortable bedding option for teens, adults, and kids.