Scotch Super 33 Plus Vinyl Electrical Tape Black, Pack of 10

As an electrician I use 33 almost everyday. I've used other brands and styles before but nothing compares at all. It stays flexible and sticky in the cold. It stretches and flexes to make nice tight wraps when pulling wire. If I open older electrical boxes that have grouped wires or taped connectors for added protection, I can usually tell if it was 33 mainly because its still on there because it doesn't dry out.