Vince has now played one ODI and four Twenty20 Internationals for his country, including opening the batting against Afghanistan in the ICC World T20 in India.
He was also in action for Karachi Kings in the Pakistan Super League over the winter, which also saw him pick up the man-of-the-series award during England's T20I series against Pakistan in the UAE.
As well as captaining England Lions against Pakistan 'A' and UAE XI in January, he toured South Africa with England's T20I side before heading to India, where England fell just short of glory, beaten by West Indies in the ICC WT20 final.
During the tournament, Vince managed 22 runs in 18 balls batting at the top of the order against the Afghans, setting up a 15-run win for England.
Now back home, Vince is looking ahead to the 2016 season with Hampshire, as captain of all three formats for the first time.
"I'm pleased to be able continue my association with GM and I look forward to using the best bats in the business as I move into the next chapter of my career, both on the domestic front whilst hopefully realising further international ambitions too," Vince said.
Gunn & Moore Product Manager Tom Coffey added: "We're delighted to extend our relationship with James as his career and profile continues to develop.
"Having only recently turned 25, James has his best years ahead of him as a batsman and a captain and I'm sure he'll gain greater international exposure in the non-too-distant future."
Vince will be using the new GM Paragon F4.5 DXM bat to try to drive Hampshire to success and earn more England recognition.
© Cricket World 2016