Tanning Grades
Full Grain
The epidermis layer remains completely intact, preserving the natural surface texture and grain pattern. This grade offers maximum durability and develops the most distinctive patina over time. The corium layer beneath provides structural strength.
Top Grain
The surface undergoes light sanding to remove minor imperfections while maintaining most of the natural grain. This process creates a more uniform appearance while preserving significant structural integrity from the corium layer.
Genuine
This grade uses split layers from the corium, with the epidermis removed. While still leather, the material lacks the natural surface characteristics and may require additional finishing treatments to achieve desired appearance.
Layer Structure
Epidermis to Corium
The epidermis forms the outermost protective layer, displaying natural grain patterns and texture variations. Beneath lies the corium, a dense network of collagen fibers that provides tensile strength and flexibility. The relationship between these layers determines the material's performance characteristics.
Fiber Architecture
The corium contains interwoven collagen fibers arranged in a three-dimensional network. This structure allows the material to distribute stress evenly across its surface, resisting tearing and maintaining shape under load. Full grain preservation maintains this natural architecture.
Performance Characteristics
Durability Index
Full grain leather maintains the highest durability rating due to intact surface layers. The natural grain structure resists abrasion and maintains integrity under repeated stress.
Flexibility Curve
The corium layer's fiber network provides natural flexibility. Full grain materials maintain optimal flexibility curves, allowing movement without permanent deformation.
Moisture Resistance
The epidermis layer provides natural moisture barrier properties. Proper conditioning maintains these characteristics while allowing the material to breathe.
Aging Properties
Full grain leather develops the most distinctive patina through natural aging processes. Surface characteristics evolve through use, creating unique appearance over time.
Selection Criteria
Grain Consistency
We evaluate each hide for grain pattern consistency and natural marking distribution. Variations in texture and color are expected and contribute to the material's character.
Structural Integrity
Each piece undergoes inspection for structural soundness. We verify that the corium layer maintains proper density and fiber orientation for intended applications.