What Our Gearhead(R) Experts Are Saying:"I wear glasses under my goggles and the Helix is one of the few pairs that actually fits comfortably over them without pinching. The bonus lens has saved me more than once when the weather flips from sun to flat light halfway through the day."We start the morning under bluebird skies and end it in flat, shadowy light, and the Anon Helix Perceive Goggles handle both without missing a beat. Built for riders who wear glasses or just want the flexibility to adapt as conditions shift, this pair comes ready with a bonus lens so there's always a tint that matches what the sky is doing. The cylindrical Perceive lens keeps terrain sharp and high contrast in changing light, while full perimeter venting and anti-fog treatment keep things clear no matter how hard you're working. Dual layer face foam seals comfortably against the face, and the no slip silicone strap keeps the goggles locked in place run after run.