This size is the medium in this design (20 is the weight of the aluminium sheet in front)
Grained leather 
Aluminium front and base
Black suede lining 
Single cable wraped in pvc carry handle 
Signature boucle closure
Inside zipper pocket and pouch 
Metal feet at base
 
W:21-42 X H25-43 X D13 (CM)
Made in France, Paris