"There’s lots of versatility in Bertie, a compact wallet with zipper closure, interior slip pockets, and optional belt loop or wrist strap. Adding the optional RFID fabric adds digital security for any credit cards inside the wallet. Bertie is the perfect little brother (or sister) to our Bella pattern. Finished size: 4-1/2"" wide, 4-3/4"" high, and 3/4"" deep. 11.4cm wide, 12.1cm high, and 1.9cm deep."