XS S M L XL XXL
Pit to pit 50.5cm 55.5cm 58cm 62cm 70cm 73.5cm
  20ins 22ins 23ins 24.5ins 27.5ins 29ins
Length 66cm 68.5cm 68.5cm 73.5cm 76cm 76cm
  26ins 27ins 27ins 29ins 30ins 30ins