I had Polarising yellow ultrasight Carrera goggles with black frames, my girlfriend had Polarising light yellow ultrasight with liquid frames. Yellow ultrasight is almost grey, need to look very hard to see yellow tint. Light yellow is coloured like those old driving glasses.

Fantastic in poor light, great in bright light, ok in clear-skies.

Took sunglasses, never used them even though there was not a cloud in sight on most days.

Cheapest polarised lens I found, would need to spend a fortune to get a similar quality lens on say Oakley. Also, found the large, cover-your-face approach of all the other vendors a little unimaginative. The sun tan marks I had at the end of the holiday were not much worse than glasses.

Previously I had VERY OLD UVEX (10 years), double lens - grey. I can't believe I ever skied in them. Tried once in St Anton (Lech), it was snowing lightly and was complete white-out conditions; Couldn't see tracks left by previous skiers, small bumps were a surprise when they arrived.

It was my first run in the resort, I was mid-turn and had to bale-out because I didn't see the drop until the tips of my skis were about two foot away. Later, back in St Anton I found that moguls in a marked ski-route in a bowl between two peak were hilarious, couldn't see a three foot bump when they were one bump (about 1.5 metre) away.

Two mates in more modern goggles, one yellow the other pink, had similar problems.

Vowed that day that my next goggles would be polarised.

I would say that polarising filters are ESSENTIAL for goggles, as the kind of conditions when goggles become mandatory is the kind of conditions when perception of the surface ahead of you becomes critical.