The 37-year-old will represent the brand internationally for the next five years, according to the organisers.
Commenting on the event, Attiitude Fashions Pvt Ltd's founder and CEO Mansoor Ahamed said: "The Attiitude brand stands for those that follow their instincts and wear their rebellious streak on their sleeves. We are excited to have Chris on board with us."
"Chris has carved a niche for himself in the world of cricket with his fearless style of cricket and we see great synergies between Attiitude and Chris," he added.
Gayle said: "The brand echoes my philosophy and I feel strong connect with it. Both Attiitude and I are committed to a long-term partnership. I am impressed by the way Attiitude has gained popularity across the globe in a short period of time and is committed to promoting an alternative attitude through sports," Gayle said.
Attiitude.com has also been featured in the Retailer magazine as one of the 100 brilliant brands reshaping the world of retail.