Cotton fabric front. Black cotton jersey back (blocks out the light). Cotton fabric covered elastic band. Soft padding inside. Text and heart are embroidered. Both hand and machine sewn.
Available in many different colours at my Etsy shop.
Measures 18,5cm x 8,5cm / 7.3“x 3.3”
Silk back cost a $4.00 more. You can order it here: https://www.etsy.com/listing/116717948/use-silk-satin-back-please