The Spigen Slim Armor CS is a sleek and stylish cardholder case designed specifically for the Samsung Galaxy S9. It features a dual-layer design with a shock-absorbent TPU interior and a durable polycarbonate exterior. The case has a hidden card slot on the back that can hold up to two cards, making it convenient for carrying your essential cards with you. The card slot is secure and easy to access, ensuring that your cards stay in place. The case also provides precise cutouts for easy access to all ports, buttons, and features of the Galaxy S9. With its slim profile and excellent protection, the Spigen Slim Armor CS is a popular choice for Samsung Galaxy S9 users who want a cardholder case.