A true Marine Layer classic. Enough said. Our best selling Double Knit fabric is made of two layers that are stitched together: the outer face, which is a layer of our heathered tri-blend fabric. And the inside, which is a layer of crazy soft jersey. Basically as close to perfection as we'll ever get. Alex, who starts every day with yoga and a pitaya bowl (you can Google it...we had to), is 6'1 and wears a Medium.