The Giro Sario Helmet and Index 2. 0 Goggle solve the same problem from opposite ends: closing the gap that eyewear wearers usually fight where a helmet meets a goggle. Index 2. 0's added interior volume and temple cutouts make room for glasses without pressure, while the Sario's vertical tuning adjusts the helmet's fit to match, so the two seal against each other instead of leaving a cold gap at the brow. What Our Gearhead(R) Experts Are Saying:"Three days into a ski trip in progressive lenses, I haven't had to re-dial the fit once, even after pulling the goggle off between runs and jamming it back on."