Selling old clothes?
If you think you can get enough for the jeans to make ebay or other options that people may mention worthwhile, try it. As to the bras, I can't imagine trying to sell or give used underwear to or taking it from another person, not even my nearest and dearest.
You might consider donating the jeans to a non-profit that clothes people who are having rough times -- homeless services, for example.
https://www.threds.com/ I believe they buy
High weight 335,Surgery weight 293.5,
M1- 24.5 lb,. M2 14, M3-9.5, M4- 7.5, M5- 6.5