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Oakley Flak Jacket Standard Replacement Lenses

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Item # OAK1400

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Item # OAK1400


If your Flak Jacket lenses took a beating on your last endo, replace your scratched lenses with the Oakley Flak Jacket Standard Replacement Lenses. Swap these lenses out with your standard Oakley Flak Jacket lenses in a few seconds for a darker or lighter lens tint that suits your style and lighting conditions. Of course the Oakley replacement lenses offer distortion-free vision and relentless UVA, UVB protection for your eyes. * See sizing chart for different lens tints and uses.

Tech Specs

Recommended Use:
cycling, running, driving
Manufacturer Warranty:
1 year

Size chart

Fuji Bicycles


Geometry Chart


Altamira LTD

Seat Tube


Effective Top Tube








Head Tube


Head Tube Angle


Seat Tube Angle


Bottom Bracket Drop


Chainstay Length



44 44.0cm 51.5cm


36.3cm 72.1cm


72.0 deg 75.0 deg 6.9cm 40.5cm 97.1cm
47 47.0cm 53.0cm


37.0cm 74.1cm 13.0cm 72.5 deg 74.5 deg 6.9cm 40.5cm 97.7cm
50 50.0cm 54.5cm 54.0cm 37.0cm 76.0cm 14.0cm 73.0 deg 73.5 deg 6.9cm 40.5cm 97.6cm
53 53.0cm 56.0cm 56.0cm 37.9cm 78.3cm 16.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 98.6cm
55 55.0cm 57.5cm 58.0cm 38.9cm 80.1cm 18.0cm 73.5 deg 73.5 deg 6.9cm 40.5cm 100.1cm
58 58.0cm 59.0cm 60.1cm 39.7cm 82.1cm 20.0cm 74.0 deg 73.5 deg 6.9cm 40.5cm


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Here's what others have to say...

Are these authentic Oakley replacement lenses?

Hi there,

Yes we are an authorized retailer of Oakley, so these are 100% authentic!


flak jacket replacement lenses

    I own 6 pair of these lenses they are great lenses, just take proper care of them you can also but nose pieces and stem pieces that make the frames into a whole new look. the kits are only 13 bucks they come in blue red rootbeer yellow white black and slate, just something to look into.


    the BEST multi sport lenses

      Ive been using my Flaks for about 1.5years with the Black Iridium Polarized Lenses. If i were to stay out in the constant bright sun these were awesome but...I dont. Im an avid hiker, kayaker and the occasional mountain biker...not to mention morning work commuter. Going in and out of the sun and into the shade was annoying with those lenses so I realized they weren't for me. These VR28 Iridium Standard lenses are AWESOME! Perfect for what I need. I don't miss the polarization at all. The VR28's knock out plenty of glare and transition so well into the shade. I highly recommend for multi-sporters! Dont let the pinkish color fool you...they are actually a brownish tint and really brighten things up a bit! 2 thumbs up!

      You seay "These VR28 Iridium Standard lenses are AWESOME!" What is the exact name of those lenses on backcountry site - are those just Fire Iridium ?


      Perfect Replacement Lens!

        I scratched the crap out of my old lenses taking them through slot canyons and have replaced them with these! they are easy to snap in and out of the frame and save you some money from having to buy new frames!

        how long does it take to recieve my...

        how long does it take to recieve my replacement lenses?

        Are the Flak lens compatible with the half...

        Are the Flak lens compatible with the half jacket lens

        Best Answer

        These lenses are not interchangeable.

        Would these replacement lenses fit the...

        Would these replacement lenses fit the asian fit version? I read somewhere on the Half Jacket not fitting the asian fit version. Does anyone know? Thank you.

        The only difference between the Asian Fit flaks and the regular Flaks are the nose pieces. These will work fine.

        can you see the eyes of the wearer through...

        can you see the eyes of the wearer through the lense or is it reflective

        The 'iridium' lenses, with or without polarization, are 'mirrored.


        Oakley Flackjacket clear lens

          Works great-wish it cost $10 less; having multiple lenses adds up.
          Lens coating works as advertised, keeping fingerprints and sweat off it's surface.