Mihara Yasuhiro "Aburidashi" Bi-fold Wallet Maison MIHARA YASUHIRO The color has changed over time due to aging, and some of the inner buckles are now visible. This bi-fold wallet uses the "Aburidashi" technique, which traps the buckle parts inside the leather, making them appear to float. This is an original, special technique unique to Mihara Yasuhiro. The leather's appearance changes the more you use it, allowing you to enjoy the aging process.