The search results confirm the details.
- The kit is indeed the Manchester United 2008-09 third kit, made by Nike, with ...AIG as the sponsor.
- It is predominantly blue with white accents.
- It commemorates the 40th anniversary of the 1968 European Cup win, as indicated by the "May 29th 1968 40th Anniversary" embroidery around the crest.
- Manchester United won the European Cup in 1968, beating Benfica 4-1, and wore blue for that final.
The description is accurate and within the constraints.
"The Manchester United 2008-09 third kit is made by Nike, featuring AIG as the sponsor. It is predominantly blue and includes a special badge commemorating the 40th anniversary of the club's 1968 European Cup win, with white accents."