The model on the pictures is 1.67 m tall and usually wears the German size S.
The recommended size is an S up to L
Please compare the measurements!
Width under the arms: approx. 54cm
Length from shoulder: approx. 48cm.
Sleeve length from underarm: approx. 53
Sleeve width upper arm: approx. 17cm (stretchable, the sleeves are supposed to close fitting)