Corrected-grain leather starts from a lower grade hide with more natural marks, so the surface is sanded down to remove imperfections, then embossed with an artificial grain pattern and finished with a heavier protective coating. The result looks uniform from panel to panel, which is hard to achieve with natural, unaltered hide.
The thicker finish makes corrected-grain leather more resistant to stains, scuffs and fading than full-grain or top-grain leather, which suits a busy household. It will not develop the same natural patina over time, since the surface pattern is applied rather than the hide's own grain. It is a common, practical choice for family sofas, alongside options such as a pigmented leather finish, and our guide to sofas for pets and kids covers durable choices in more detail.