Oakley A Frame Google Straps KitThe Oakley A Frame Goggle Helmet Strap Kit improves the fit of your goggles when worn with a helmet. How does it work By extending the point where the goggle body meets the elastic straps, you get an even pull around your helmet while the goggle body stays comfortable against your face. Can't decide if you need the Helmet Strap Kit Put on a hat and your A Frame Goggles. Fits evenly over your face without any gaps or pressure spots right Now put on your helmet and your A Frame Goggles. If they fit any differently, then you would benefit from the A Frame Goggle Helmet Strap Kit.