What type of paper do you use for your direct mail letters?

[Mitchell Rusten]

I may be overthinking things, but I’m preparing to do my first mailing and was wondering what type of paper is best/necessary for my letters. I plan to print a “personalized” letter (interchangeable name and address) and hand-sign the bottom of each letter in blue ink, and then handwrite the info on the envelope. I have the program set and my letter designed, so I’m moving on to ordering materials. I just want to make sure I get a paper that will hold up in the mail and won’t get beat up too bad, so the letter maintains its integrity and looks more legitimate. I also don’t want something that is so thick it isn’t practical. Do you folks have any recommendations for me?

Thanks!