I wore it one night a week its about 5 years old now saying that if it was worn everyday for 5 years should be replaced. But did not get worn but one night a week and only about an hour and a half or two hours but if I was to wear it every night or everyday. I would definitely replace the armory but I have several in my collection thats I have for personal use if ever needed. I have taken by oldest vest and tested it with my 45 and 357 and it responded the way it should but I feel better replace it every 5 years but I do keep my old one never know when one might need one .