Crayon Sky Music

What do you call the wrapper or the black cover used to cover guitar amps or guitar hardcases?

for example: http://www.made-in-china.com/image/2f0j00avFtfMbJhYgBM/Electric-Guitar-Hardcase-Fender-Gibson-Ibanez-Bass-KHhc001-.jpg

Tolex

Guitar Factory China electric & acoustic guitars manufacture