I am from the wet Pacific Northwest and I wear an extra large. Both hats sent to me were identical. The inner gortex skull cap is smaller than the outer canvas crown and therefore the canvas outer shell can not be stretched tight over the head. This leaves a cratered depression on the top of the hat that will collect water. The canvas is not waterproof but can be made water resistant by waxing but the pooling water will defeat these attempts and the canvas will become water logged quicker. The gortex is supposed to keep the head dry however. The dented crown is also not the classical Jones Cap look.
