I'm a small (~6.75 hat size). I found the Smartwool cap a bit too big, but the Ibex fits me. The Zephyr skull cap that I got is not symmetrical - it's cut longer in back and on the sides that it is in the front. Ibex did have the Meru hat in a regular and with earflaps version. My Zephyr has the "with earflaps" cut, but maybe there was a symmetrical version also.