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.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72