Quiksilver Snow Pants?

Damn those are tough

Oh boy, I like those. Bet it's a new color that hasn't been released.

That french crew modifies a lot of their pants so could just be custom

I think I found them but I think your might be right about them modifying them a little bit cause it seems like the ones in the vid don’t have the elastic band at the bottom of the pant.
https://www.nordstrom.com/s/snow-down-waterproof-cargo-snowboard-pants/7983692

my quiksilver snow down cargos. Best fuckin pants and I cant even list all the ways I love them. i got them in the black colorway. Order a size or two up if u want more baggy bc there is a sinch on the bottom of the pants and a built in belt they are awesome