Cleveland Browns linebacker Zac Diles is officially in the fashion game -- and his company is selling an Italian cashmere baseball cap ... FOR $1,200 EACH!!!
TMZ Sports has learned ... Diles is a part owner of Melin ... a company that specializes in high-end designer headwear.
The company uses everything from antique metals to genuine pony hair to pimp out their products -- with the top item, the $1,200 hat, boasting real ostrich leather.
We spoke with Diles who tells us ... his teammates have been incredibly supportive -- with guys like Johnny Manziel, Joe Haden and Donte Whitner rockin' various items.
"It's always great to see guys in the locker room supporting."
Diles says he's incredibly proud of the brand and how it's grown -- saying,"When I put on my Melin hats, I get that sense of achievement. The sense t hat this is earned."