Port Authority k500 Size Chart

Imperial Sizing (US) S M L XL 2XL
A, in 29 30 31 32 33
B, in 40 42.5 46.5 49.5 54
C, in 20 20.75 21 22 22.5

 

Metric Sizing (Rest of World) S M L XL 2XL
A, cm 73.7 76.2 78.7 81.3 83.8
B, cm 102.9 108 118.1 125.7 137.2
C, cm 50.8 52.7 53.3 55.9 57.2