You might need new goggles, I know that several goggles can have the tearoff posts added to them. I have experience with Scott and Spy tear-off and can tell you that Scott uses a thinner film and the Spy goggles came with posts on the lenses that can be adjusted for tension. Spy tear-offs also seem to fit the lens better (they tuck into the frame a little). You should also look at roll-offs, they won't have you throwing clear plastic all over the woods. Just look at one of the bigger internet retailers, or browse throught the parts umlimited catalog at your local dealer, to see what appears to suit your needs and budget. Installing several tear-offs on your goggles can have a negative effect on your vision which is another reason you should at least consider the roll-offs.