As you purchase the XLR cable, you should put the following into consideration. The first aspect is the cable length. A comfortable length should range from 3 to 50 feet. You should go with the shortest option. A shorter one reduces any interference.  You should also check cable cores. A good core should have a thickness of 20AWG and 26 AWG. The thickest is 20 AWG, which will produce high-quality sound.  Another aspect to consider is shielding. Mostly, shielding materials are tin, aluminum laminate, and copper. Lastly, consider using snug fit connectors to prevent wiggling lose.