There had been suggestions on the Iron-Bru.net messageboard that the club had been looking at other suppliers, however the club are entering the third year of a three year contract with Carlotti.
United's commercial manager Michelle Harness told Iron-Bru.net: "I have just finished [the design for] a new home shirt for next season."
She said that the club would also be sticking with the sky blue away shirt for the 2009/10 season.
Harness also confirmed that the club are looking into kit choices for the following season - but Hummel is not one of the brands they are looking at.
The Rainham Steel sponsorship runs alongside the three year Carlotti deal, so at the end of the 2009/10 season there will be a new kit, possibly a new brand and new sponsor.
Players training wear for the forthcoming campaign will also be provided by Carlotti. The final mock up of the new shirt will be available shortly.