Join Date: May 2002
Location: Pittsburgh
Programs: MR LT Titanium, AA LT PLT, UA SLV, Avis PreferredPlus, HH Gold, Hertz PC, National Executive, etc.
Posts: 31,647
The yellow foam tips are by far the best for isolation, IMHO (barring custom molds, of course). Roll them up like earplug, pull you ear pinnae up and back with your opposite hand from over your head, insert the foam and let it expand to fill the ear canal. For a super fit, open your mouth/jaw at the same time.