I'm 5'10", 160 lbs. with a thin build. I'm wanting to layer a Halstead Fleece over my medium Llano QZ and Chama Hoody. I like more of a form fitting, athletic cut to my layering system. Anyone with experience having worn the Halstead, would you go with the small or the medium based on my size and layering preference? I've read the Halstead runs a bit looser, stretchier and longer in the sleeves.