I bought these and just got them. The yukon jacket, in large, doesn't have a hood, and weighs 30 ounces... The vest, also in large, weighs 20 ounces. This is within one ounce. Most of the weight comes from heavy polyester fabric on both the inside and outside, multiple cinch cords, pockets, etc, and not so much from down fill.
I think I will send mine back, which is a shame with all the shipping, handling, and tax I won't get back.