Also, try before you buy. What fits great on one, fits lousy on another. Some goggles won't work with some helmets. Also, look for a pair with a wide field of view. I've found the exterior size of the lense is not neccessarily an indicator of this. Often, the inside perimeter of the lense is filled with foam or plastic, which blocks peripheral view. High-vis yellow, light rose, and pale orange are good choices for flat light. Stick with the lighter shades if you're going to ride at night. I'm not a fan of clear lenses, even for night riding. I like a some color to help provide a little more contrast. I'm in the market for a new pair as well, and have tried several pairs on. Leaning right now towards Smith Prodigy's. They fit my big head, work with my helmet, have a nice wide field of view, and have a great range of lenses to choose from.