Here is the latest count on the shirts I've got left;
XXXL   54" to 56"   2 in Red
XXL    50" to 52"   1 in Red
XL    46" to 48"   3 in Red and 6 in Blue
L      42" to 44"   1 in Red and 1 in Blue
M    1 in Red and 3 in Blue
S                2 in Blue