A currier is a specialist in the leather-processing trade. After the tanning process, the currier^[1] applies techniques of dressing, finishing and colouring to a tanned hide to make it strong, flexible and waterproof.^[2] The leather is stretched and burnished to produce a uniform thickness and suppleness, and dyeing and other chemical finishes give the leather its desired colour.

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After currying, the leather is then ready to pass to the fashioning trades such as saddlery, bridlery, shoemaking or glovemaking.^{[citation needed]}

• Russia leather, a historically important oiled leather, curried with a birch oil that gave it a distinctive scent.