blood red reverse culatta leather phone holderthe culatta leather phone holder, has been cut from a butter soft full grain 2mm vegetable tanned, washed and tumbled reverse horse culatta leather, with a blood red dye treatment. vegetable tanned leather is an ancient artisanal process that hinges on the delicate balance between timing and temperature. like a fine aged whiskey time is key, the careful balance of time allows the natural tannins such as tree bark to infuse, yielding rich colours and