When you made the registration you select a T-shirt size.
Now you have available sizes of the T-shirts.
If you wish to change the size you are still on time, you need enter to the website, and access to your profile to make the change.
REGISTRATION / MANAGE RUNNER PROFILE / CHANGE PERSONAL DATA
SIZE S (70,5cm long x 44cm wide)
SIZE M (72cm x 48cm long wide)
SIZE L (73,5cm long x 52,5cm wide)
SIZE XL (56cm long x 76,5cm wide)
SIZE XXL (79cm x 59cm long wide)
SIZE S (58cm long x 42cm wide)
SIZE M (60cm long x 44cm wide)
SIZE L (62cm long x 46cm wide)
SIZE XL (64cm long x 48cm wide)