Oakley Crowbar MX Tear-Off (Pack of 25) (Clear) by Oakley. $14.00. Seconds away from busting through the pack is no time to find yourself dirt blind. Our tearoff system lets you peel away their tread flack with machine gun speed. Precision engineered for the Oakley CROWBAR® MX goggle, this set of 25 maximizes your vision with the clarity of optical grade MYLAR®.