Sized Designs

 Size  UK Size  Chest Width Imperial  Chest Width Metric

Small

8 to 10

36”

91cm

Medium

12 to 14

40”

102cm

Large

16 to 18

44”

112cm

Extra Large

20 to 22

48”

122cm

Free-Sized Designs

Variable, depending on how loose you “prefer to wear”.

 Size  UK Size  Chest Width Imperial  Chest Width Metric

Small / Medium

8 to 12

48”

122cm

Medium / Large

12 to 16

54”

137cm

Large / Extra Large

16 to 20

60”

152cm