Arsenal announce Adidas kit deal reportedly worth £300m
Arsenal will begin a sponsorship deal with Adidas from 1 July next year, which will reportedly see them earn £60 million per season.
Update:

Arsenal have announced a new kit sponsorship deal with Adidas, which will take effect from next season.
Adidas partnership set to double Arsenal's money
The agreement, which is reportedly worth £300 million over five years, becomes active from 1 July 2019.
It is claimed the new deal will bring in double that which they have earned from Puma since 2014, although it is still less than the reported £75m per year Manchester United earn from Adidas.
Gunners last wore Adidas in 1993/94 season
Arsenal previously wore kit supplied by the German sportswear giants between 1986 and 1994, before beginning a 20-year association with Nike.