Ray-Ban 2140 Wayfarer - Johnny Knoxville - Jackass Forever
These classic Wayfarer glasses have a black frame and it looks like he wears custom (possibly prescription) lenses.
The Wayfarer is one of the most popular sunglasses frames, see more Wayfarer sightings in movies.
Jackass Forever is the sequel to Jackass 3D (2010), it is the fourth main instalment and the fifth overall instalment in the Jackass film series.
Reference: Ray-Ban RB 2140 Wayfarer - Color: Black (code 901)