I just talked to my girlfriend (who worked at Adidas for 10 years - and now in still in the shoe industry in Skandinavia). She sais this is the most cheapish and shaite version of a shoe you can ever buy.
It is not at all comparable to a "real" Adidas Samba. Look at the sole and the "leather" ish material.
Now I know, where the 39 quid are coming from.
A normal, good Adidas (Originals) Samba is around 120,00 Euros plus!
A decent Adidas "Performance" Samba still is 80,00 Euros plus!
I was SUPER suspicious as soon as I saw the marerials. 90% of all Velosambas are the crappiest crappy crapson verison! One benefit when your wifey works in that industry.