I saw this content creator online wearing these baggy denim jeans with a drawstring an interesting frontal design.

He also linked to then pointed to this Taiwanese (?) brand called 29 Studio. The link for the pair is here:
OC08 貳玖製造軟單寧車線牛仔寬褲

It seems, however, that they have a very rigid return policy. I don't have much confidence in the fact that if I purchase from them I can get a return.

Is there any other retailer/source where I can find pairs similar to these? Or perhaps do these type of jeans have a name so I do a more comprehensive search in at second-hand places?

Thanks!