If it works as advertised it will make synthetic bags a thing of the past.
I just wish Kuiu would make an attempt at making correct sizing. If that means they need to make a Tall option so be it. But the BS sizing they got going on now sucks. Jason claims its an athletic fit. BS a XL and XXL are the same length. I know I have bought both and measured. I would like to be a Kuiu "fan boy" as they make some really nice products. But sleeve length sucks! Even the chest sizing sucks. Athletic to Jason must mean short and skinny "Breadstick".