ESDJCO Branded T-Shirt. Extra strength Disc Jockey Company (ESDJCO) has been devoted to DJ culture since 1993. In that time, we have continued our passion and effort to provide DJs and the dance music community with a clothing line that exclusively represents its own culture. We have also maintained our initial integrity by remaining the number one contemporary clothing line focused exclusively on DJ art. All ESDJCO T-Shirts are made from 100% fully machine washable cotton for a super soft feel.