"Not the best looking goggle on the market, but certainly one of the most practical. Very easy to change lenses, although a bit of practice is advised before trying it on the slopes. No fogging experienced all week. Only two downsides were that if the goggle was not in exactly the correct position against the helmet then the two would bang and clunk together going over bumps and after a week of being attached to the helmet the elastic strap is showing signs of being stretched even though it was on maximum expansion. Visibility & comfort are excellent and value for money isn't too bad when you consider you are getting two lenses and the soft case included. That and the Switchlock Technology make it worth the cost. To keep the spare lens safe while out skiing I purchased a 0.9l airtight food container for £3 which the lens fits in perfectly and wasn't too heavy or bulky for the rucksack. Nice and quick delivery from The Internet Opticians."