Bicast leather is split leather, the part of the hide left after the top-grain layer is removed, that is laminated with a polyethylene or polyurethane coating and embossed with grain patterns for a natural look. It is much less expensive that top-grain leather but not as durable.
Bicast leather is frequently used on the parts of furniture that do not show and by the footwear industry. It is also called PU leather for the polyurethane coating on the top. Bicast leather does not develop a leather-like suppleness with age, and it is more prone to cracking and splitting than regular leather, but it is easy to clean.