Ok now THIS photo loads for me, hurrah! Idk what Hudson Bay means in this context but if it's got anything to do with using muted colours for the stripes then....nice, I like Hudson Bay lol.
Those stripes are a classic design popularized by the Hudson's Bay company, which started as a fur trading company in the 1600's in Canada, but now exists as a department store. https://en.m.wikipedia.org/wiki/Hudson's_Bay_point_blanket
Adding to the other comments (which nailed it). Hudson Bay Company made the pattern famous. Pendleton (in OR) started making one nearly identical in 1916 and called it the Glacier National Park pattern. The Hudson Bay Company fur trade ran down into the WA and OR territories so the pattern is entrenched in PNW culture as well.
It might be entertaining to see if saying the Pendleton blanket is better than the HBC blanket (or vice versa) would start a fight. I know that HBC is thicker (and therefore warmer) but their blanket is woven with unfinished edges so a little prone to fraying. Pendleton has a tighter weave and finished edges. Personally, I'd be happy with being gifted either because 🤑🤑💸💸