Oakley Ski Goggles Fall Line XL OO7099 44 Poseidon Prizm Snow Sapphire Iridium Gold Flash Gradient These feature a side window SKS SE6160 10D 63#HH These feature a side window for extended peripheral views which also gives good side protection and they also have a retaining strap Guess Glasses Frames GU2563 002 Black have a flat metal frame in a rectangular style and have notches at the temples for prescription glasses to be worn underneath if needed and allow most helmets to fit perfectly Oakley Ski Goggles Fall Line XL OO7099 44 Poseidon Prizm Snow Sapphire Iridium are a cylindrical style lens model from the Oakley Line Series inspired by the popular Line Miner