Apparently, Manchester City, Blackburn and etc were not the only one that sponsored by Umbro in 2012-2013 season.
Wembley FC is an semi-professional football club based in Wembley and currently is playing Combined Counties League Premier Division (level 9-10 of English Football Pyramid).
On June, 2012, Ray Parlour, Martin Keown, Graeme Le Saux, Claudio Cannigia and Brian McBride have signed with Wembley FC to play in their FA Cup campaign.
Feel free to read all the detail in here: http://en.wikipedia.org/wiki/Wembley_F.C.
Suprisingly, its jersey has more details than some professional team jersey.
Year of the club formed "1946" is stitched insdie the collar
Team motto "A Posse Ad Esse" ("From Possibility To Reality") is at the back of the collar.