Tanning:
Processing whereby putrescible raw hides and skins are converted into leather.

Top Finished:
A leather which has been given a final coating of a finish to confer special properties such as gloss, level colour, fastness to wet rubbing, waterprooffiess and so forth.

Top Grain:
North America. The grain split of a hide.

Upper Leather:
Leather produced for the outside upper part of footwear.

Vegetable Tanned:
Leather tanned exclusively with vegetable tanning agents or with small amounts of other agents, used merely to assist the tanning process, or to improve or modify the leather, and not in sufficient amounts to alter notably the essential vegetable tanned character of the leather.

Wet Blue Leather:
Leather which after chrome tanning has not been further processed and is sold in the wet condition.