Adjustable elastic headbands for a perfect fit! '90s style Bra Strap Headbands in a soft, stretchy 3/8" (about 9mm) wide elastic that is fully adjustable to fit all sizes very, very comfortably! Sliders match the color of the elastic band. Premium elastic headband with a wonderful, custom fit. PLEASE NOTE! Colors are satin elastic with a sheen - Black is a matte elastic.