Hats?

Rob,

I don't do any climbing, but the hat that I have used for quite a while is the Sunday Afternoon hat.

Maybe a large size could fit over your helmet?

It does have a large brim and a "tail" that covers the back of your neck.

Unfortunately, you will just have to deal with the fact that you will look like a dork while wearing it.

Embrace your inner hiking dork!

-Tony

I'm getting a Sunday Afternoons Adventure hat, someday, they don't look all that dorky. If you want to see a really dorky looking hat, look at my profile picture.

Are you sure you weren't burned by the sun reflecting off the glacier? Because if you were, a hat won't help that at all, but sunscreen will.

Spot on Joe. You can get the same trouble kayaking too. If you don't have sunscreen, mud makes a cheap alternative. A little mud smear under the eyes helps ward off snowblindness too.

Dr. Shade makes a Sun Protection Hood that covers the entire face. They also make lightweight fingerless gloves, which are good for hiking.
Go to glacieroutdoor.com and look under their Sun Protection products

Here's what you are looking for:

http://www.ropewise.com/sunshade.html

I will second the notion that you are getting cooked from reflected light and sunscreen is the cure. Snow can reflect 80% of the UV.

The Outdoor Research Sun Runner is light and breathable. You can approximate one by adding a bandana to your favorite baseball cap. Nike makes the Feather Light baseball-style caps that are light and breathable as well.

As far as THE hat, Tilley is it, but not with a helmet :)

For glaciers and snow, I highly recommend the OR Sunrunner.

How about a Buff or even a Buff with a brim, which can be worn in various configurations, including full balaclava mode. I carry two, one with brim and one without. I wear them both in balaclava mode on cold days. If the brim interferes with your helmet, you can wear it in the back to provide even more neck protection.

Stargazer

As Joe said, what you want is SUNSCREEN! The reflection off the glacier can fry you. And apply under your chin as well.

Cheers

I'm another fan of the Sunday Afternoons Adventure Hat. Since I'm rather stout, I rather resemble a mushroom in it, but I don't care.

On snow, though, you're getting double sun–that coming directly from the heavens (which the hat will take care of) and that reflected back up to you from the snow (which the hat will not block). The same is true when you're on or close to water–you're getting a double dose there, too.

Sun hat plus sunscreen is the only way to prevent damage. I have to use sunblock (titanium dioxide or zinc oxide) because I'm allergic to most sunscreens. I'd rather have the clown face, though, than the sunburn!

http://www.sunprecautions.com makes some excellent screening clothing, such as hand covers, head drapes, etc. But unless you cover your face completely, sunscreen is also necesssary.

EDIT: Sun Precautions has a "Helmet Drape" that can be worn under a helmet–sounds like just what you need for climbing.

I know, I know, sunscreen and a hat are key – unfortunately we brought neither of these. Forgot them :S. Ended up pretty gnarly, my face actually looked cooked – the skin that flaked off was brown, like it had been in a microwave.
That said I'm thinking the sun runner and a buff (in my pack or wearing) I'd like to wear the hat under a helmet, so I'm looking for something that works with my chin straps.
Thanks all for the suggestions! Looking into the links right now…,