Moab H/P

I've probably used these on over 90% of my trips and have owned several pairs of these over the years. I use these for climbing, hiking, skiing, running, and mountain biking. I find these to be a huge benefit because I wear contacts.

Pros:

• Lenses:Three lenses allow my contacts to be protected from wind and dirt at all times. I wear the clear lens for night ascents and the mirrored platinum one for during the day. During the winter and cloudy conditions I'll switch to orange. On my Donner Peak winter trip, I used all three within a few hours.
• Eye coverage: In addition to using the clear lens at night to protect my contacts, the large wrap around shape also protects my eyes and contacts when there's wind and wind-blown dust. Very effective for full eye coverage.
• Nosepad: The soft megol nosepad is extremely comfortable, form fitting, and works well when wet or sweaty. No problems taking these on half marathons or mogul runs at downhill ski resorts.

Cons:

• Style: Up until recently, I had no reason to look for a new or different set of sunglasses but I've recently been told by women climbers that these aren't the best looking shades out there. I have since picked up a pair of Oakley Eye Jackets for day time activities but for mountaineering objectives, I still use the Smith Moabs.
• UV C Protection: Although these provide 100% protection against UV A and UV B, Smith's website doesn't mention anything about UV C because Smith does not believe UV C is a concern. UV C (short-wave, high-energy 100-280nm) radiation is typically absorbed by the atmosphere in the ozone layer and generally not a concern for low land activities. The ozone layer has been estimated at 15-64km (49,200-210,000 feet). I have used these under blazing sun on Orizaba, Izta, Kili, Shasta, and Rainier without issues and I never really thought about UV C protection. Hopefully I won't get premature cataracts ;-)

Overall, very functional, especially for my contact lens use. Early on, I picked up a hard case to carry both the frame and the lenses so I never had any problems with these in my pack or while traveling.

So light and comfy you won't remember you have them on.

I use these for ice climbing. I find them to be the best solution that I've ever tried.

They protect your eyes from ice shards. That's really why I got them. The wrap-around design gives good coverage, but allows enough airflow to keep them from fogging up. They fit my face well and don't interfere with my climbing helmet/straps at all. I also like the fact that there's no frame at the bottom of the lens. There's no interference with your vision as you look down.

I use the yellow lens 90% of the time. The yellow lens provides some sun protection, enhances conrast, and isn't so dark that if you slip into an area of shadow you can't see. Here in New England, it's rarely so bright as to necessitate the dark lens. But I keep it handly for really bright conditions (snow bowls). The clear lens is good for really grey days and late afternoons.

Eyewear for ice climbing can be problematic. This is the best solution I've found for my needs. I don't know if they're actually designed for impact resistance of any kind. Probably not. So if you really whack yourself with your ice tool, you might break them. They're all plastic, so you won't have to worry about shards of glass. These aren't too expensive. If I trash them by mistake I haven't lost much. But, they've held up well. I've used them now for 3 years and they're doin fine.