Small 19mm
Medium 21mm
Large 23mm
XL 25mm (now only EJ do it)
For me the better size is the 21mm of EJ, 23mm are a little too big for my face, maybe for the high loft, but I like them a lot. In fact I asked Rudy Vey to do a Brush with a knot of 23mm x 50mm, just perfect.
EJ: lightly scrubby tips and a little bit more backbone and shorter loft than Muhle, but very easy to splay.
Muhle very soft tips and easy splay.
Hope this helps!
Thanks Lee, and oh wow! A medium at 21mm seems..... small. For reference, the atomic rocket, at 26mm seems about right for me.. But I suspect a lot of how a big a knot "feels" has to do with how the hairs are packed and lofted etc. Example the Chubby 2 I have is listed at 27mm? but feels -way- bigger than "just 1mm up from the 26mm".