Pros: Well packed, nice case, friendly customer service people. Cons: Very poor value for what they're asking £120 for now. The frames look cheaper than the $5 "Roy Bon" sunglasses someone gifted me from a backstreet market in Thailand. Most places do polarised lenses as standard, but you have to pay extra for this??? And all they do is reflect everything straight back into your eyes so you feel like your vision is obstructed. The lenses also don't block enough reflective sun as I expected. I feel like I'm impairing myself wearing these... isn't the opposite the point? The nose also slips every few seconds. I expected so much more and got something very disappointing. I tried with this pair for a few months to give the benefit of the doubt, but no. I'd love to give Bird another chance if they offered, but I can't spend all that money on the risk of another pair of subpar sunglasses.