Gator ABS for classic guitars GC-Classic. The GC-CLASSIC molded guitar case is great for classical acoustic guitars and is built to keep your instrument safe and secure. The case’s outer shell is custom molded from impact-resistant ABS plastic, while heavy-duty aluminum edging ensures a secure fit that will not unlock unexpectedly. The interior is lined with plush fabric and outfitted with EPS foam molded to perfectly fit the shape of the guitar while providing ample neck support.