The BAM Flight Cover for Hightech Dreadnought Guitar Case is designed to work with sku #H73170. The cover is made of a thick injected foam insert, molded to the shape of the guitar case, and covered with a strong fabric cover. In order to add extra protection, Bam developed this extremely protective Flight cover for each Hightech guitar case, to be used for tough travel. Details Outside: Strong reflecting fabric cover. Inside: Extra-thick layer of high density polyurethane foam injected around a mold taking on the exact shape of the guitar case and protecting it against shocks.