I was looking for some Serengeti sunglasses, I could find them for a few hundred dollars at some Australian stores (most didn't even stock them), I searched eBay and I found I could get most Serengetis for $150-$300 from the UK.
When I was trying to decide what style of Serengetis I should get, I found the YouTube channel for fastsunglass.com. They do reviews of sunglasses, and show you what the sunglasses look like on both men and women.
I thought I would have a look at their website, and turns out that the Serengetis I wanted were really cheap, about $120 AUD (its a US company, so prices are in USD).
They also had some sales going on, I bought two pair of Anarchy sunglasses for $18 and $15 (down from $80 and $45 respectively), plus the discount was still applied to the sale items.
Shipping is $20 USD to Australia, flat rate.
I am not sure of the expiry on the 15% off coupon (RMN14), so I also posted the 10% one (youtube) that they advertise on their YouTube videos, I would say that one is a permanent coupon.
WARNING:
When I checked out I did it through the store checkout page, and it kept coming up with an error, I tried a few more times before using their checkout with PayPal option, which worked fine. HOWEVER, I checked my bank account and I had been charged for all the unsuccessful times I tried to checkout. DON'T LET THIS PUT YOU OFF! I let them know and they were very helpful, the charges were reversed in two days, and they sent me follow up emails making sure everything was OK and said they would take a look at the problems I had at checkout. But just to be safe use the PayPal checkout option.
Costco sell this brand… not a huge-range but definitely less than $150AUD and good designs… check it out