Grabbed some of the Butter Goods Santosuosso jeans recently, and would say they run big. I'm usually a 33 waist, but buy 34 for extra room and mobility. I bought these in 32 and they're still loose around the waist, so I'm using the built-in drawstring.
Super baggy through the thigh, but taper pretty hard. If i can find somewhere locally that could match the stitching enough for my fussy tastes I might get them taken up 3-4 inches for less stacking, and then the taper will be less severe. Still, I'm very happy with them. The quality is great, like all their stuff, and looks like they'll last really well. The denim is thick and soft, they're going to be great for winter, but probably just going to be my favourite jeans for chilling and going out. I imagine they could take a beating if i skated them but they'd be too hot to skate in where I live, even in winter.