Bolle Contour Safety / Cycling Sunglasses

Hi all,
It's getting close to me jetting off to Austria now (WooHoo!!) :D
Well anyway I've seen these Bolle Contour Safety Glasses on Ebay and I was thinking of getting a pair for my week away. I have goggles but my face can get really hot when wearing in the sun. I need something over my eyes as I wear contract lenses and the wind makes my eyes water all the time and this isn't good when your peltting it down the slopes.

Has anyone got or had something like these? Are they any good?? Any advise would be great.

http://cgi.ebay.co.uk/Bolle-Contour-Safety-Cycling-Sunglasses-Smoke-Lens_W0QQitemZ190201721747QQihZ009QQcategoryZ56185QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Thanks

Looking at the listing, they appear to have either a graded lens colour, or have quite a light tint. Either of which may mean that they are not dark enough to avoid glare from the snow.
It's possible to get a decent pair of ski shades for around £20-£30.Here's an example:
http://www.ellis-brigham.com/cgi-bin/psProdSrch.cgi/@cSunglasses@bBloc
Always try on shades before you buy, as sizes and shapes vary so much.