doctorpanglossWestone, Shure and Nuforce EDC, HEM and Primo 8 all use Size 100 Comply tips! I can't recommend the Comply tips enough! Completely night and day difference for me between them and the regular silicone tips, and even the foam tips that come with most Nuforce IEM's! DEFINITELY worth the $20 on a 3-pack of them (and should last you a year or so depending on usage! Their comfort, isolation and proper seal make for an unreal listening experience IMO😎🎧 So much so that my feet felt the low-end in the best possible way!