Color: Gray, Mustard Yellow, Chestnut Brown Gray: Selected calf's high-quality Double Butt part of the leather, with pure vegetable tannin, took about 2 months to soak and tanning; by the exquisite craftsmen hand-colored and polished, strong and durable, delicate touch, with the use of the longer and more warm. Mustard yellow, Chestnut brown: Selected from top calf leather, through the two drums into the water-dyeing process of dyeing to retain the soft texture of the leather, delicate polishing process to create a suede texture, the hand gently stroked through the order of a smooth feeling of softness and resilience. A built-in zipper pocket is convenient for small objects; hawksbill buckle adjusts the length of the shoulder strap, which can be used both on the shoulder and crossbody.