>>2565351>with the lanolin all still in the woolgood point, if he's at sea he's going to want a fiber with lanolin.
if he's making his own sweater, its also an option to treat one of the fibers from my earlier post in its raw form before combing and spinning the yarn if he makes his own yarn. silicone lasts the longest but you can use a variety of natural waxes/oils. lanolin + sheep wool makes the most sense, since its naturally occurring, and less work.
the whole idea of using the same sweater for sailing and general /out/ should be tossed away. op needs a much thicker type of wool for sailing than you'd want for hiking. one is high activity the other's low activity with high wind+moisture exposure. a sailing sweater could dual purpose as a winter sweater, but not really a general hiking sweater.
listen to this anon and go with a traditional irish sweater or something close to it. make sure the wool isn't processed. get another lighter sweater for hiking in. my earlier recs are great for that.
