Colin Kaepernick clearly wasn't lying when he said he still works out religiously, despite being out of the league for 6+ years ... 'cause the star QB's lookin' ripped on the cover of Men's Health magazine!
The world's largest men's magazine is celebrating the "35 Strongest Men of the Past 35 Years" for their October/November issue ... and Kap is featured on the cover.
"Grateful to be a part of @menshealthmag 35 strongest men of the last 35 years!" Kaepernick wrote on Instagram.
The cover features a shirtless Kap holding a football, rockin' his afro .