Something I was curious about, so I have been browsing some interesting links about proper attire in mass and for every day life.
https://www.catholicgentleman.net/2013/07/gentlemen-dress-up-for-mass/
https://www.catholicgentleman.net/2015/04/dressing-like-a-man-for-mass/
http://www.catholicapologetics.info/morality/modesty/dress.htm
http://sspx.org/en/news-events/news/how-catholics-ought-dress-2203
Vita Spiritualis Blog 