Are you interested to learn more about the technical background?
Which size do I need?
Take a shirt of yours which fits well to you.
Meassure the distances like shown in the picture.
Compare it to my sizes and take the one which is close
The new dresscode
Intend's shirt for biking, as normal shirt or for being at home
Price: 29 Euro (incl. VAT)
Buy in the shop:
Sizes, PLEASE meassure before !