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Brown and olive leather offcuts on a wooden workbench.

Leather: Grain, Tanning and Care

A clear guide to leather terminology, how tanning and finishing affect the material, and why care depends on the item.

From hide to leather

Leather begins with an animal hide or skin whose fibrous structure survives processing. Tanning stabilises it with vegetable extracts or other tanning agents, while later steps help determine the material’s surface and feel.1,2,3

Reading the grain

The grain is the outer surface, marked by follicles characteristic of the animal species. “Full grain” means that the grain has not been removed by corrective mechanical treatment; “corrected grain” has been partly buffed and then finished. Splitting divides a hide into layers, so the term alone does not describe the finish or overall quality of an item.1,3

Processing and finish

Species, tanning, later processing and finishing all influence appearance and behaviour. Processing can affect water resistance, strength, flexibility and surface smoothness; a label such as “vegetable-tanned” identifies a tanning approach, not a guarantee of origin, performance or quality.1,2,3

The essentials

Family
Tanned animal hide or skin
Forms
grain split, flesh split, middle split, finished leather
Properties
varies with species, processing and finish

Look closer

Three loosely rolled leather sheets rest on a worn wooden shelf.
Leather sheets in cognac, tan and olive.
Cognac and olive leather offcuts beneath a curved tan piece on a wooden bench.
Leather grain and a fibrous reverse.
Sources and citations (4)
  1. 74 need-to-know leather industry terms
  2. FAQs: leather product care and vegetable tanning
  3. Caring for leather, skin and fur
  4. Care of Alum, Vegetable and Mineral-tanned Leather (CCI Notes 8/2)

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