Not a brand, though this answer will not help if you or someone else needs new clothes, but surviving with the clothes you already have and limiting your funds to support potentially genocide-supportive brands as well as limiting money circulating in one's imperialist country is an act of protest and is something to keep in mind if the option is available.

This option works for me because I kept so many clothes my family and friends gave me over many years, continue to wear the same few set of clothes until they are in shreds, and continue to use them for dirty work clothes and/or make plans to turn my old graphic tees into a blanket or curtain. I probably should get rid of clothes, but I kept them because they helped me save money. I am a bit of a hoarder, which is influenced by my poor upbringing.

Also buying second-hand stops money going directly to the businesses that made said products, and I always try to find anything I want or need to buy used, whether on eBay, at a thrift store, at a garage sale, from a friend, etc. first before resorting to buying it new.

I typically buy clothes at my local thrift store, especially if my work clothes rip or a zipper breaks. My mother has helped me sew some of my work clothes when I was really busy and really didn't want to purchase more clothes.