Persol 2836 - Michael Madsen

Although he usually wears Ray-Ban sunglasses in his movies, in Hell Ride, Michael Madsen wears a pair of Persol frames.

His character, biker "The Gent", wears Persol 2836 sunglasses with turtoise frame and grey green lenses (color code 24/31).

Reference: Persol PO2836-S - Color: Turtoise frame, Grey Green lenses (code 24/31)