Covers sewn from cotton cloth (or cotton-containing cloth, just don't try to use synthetics here) make great equipment covers. And sometimes we can get the wifey and her sewing skills in on such a project.

Plastic isn't so good, does not allow for the atmosphere inside the bag to breathe, which can trap humidity and lead to faster corrosion of switch contacts, potentiometers (volume and other knobs or faders) and jack connect points.

Basic rule of thumb for most electronic appliances is the same as for pets, children and guitars, don't put in an environment that you yourself either would not like to be in or could not survive in. Plastic bag is not a safe environment for humans, right?


--Mac