THE TRICK TO NAILING THE ROUND SUNGLASS LOOK IS THAT THE FRAME'S GOT TO BE THICK. 

My pal Niall O'Sullivan (founder of Ireland's venerable Pewpols optical brand) has taught me a lot about glasses.  One of those things was to appreciate the difference between typical sunglasses (whose bodies are 5mm thick) and ultra premium ones (which are 8mm thick).  This is even more important for that classic, round sunglass.

Now, of course the glass is important.  Your new Roys have lenses of 4 base CR39 sun glass with backside anti-reflective treatment, earnestly shaped by skilled Frenchmen in the mountains of Oyonnax, France. 

But those frames — wow.  Whichever color you choose, you'll appreciate the Italian acetate.  The deep blacks, browns and saffire blues just have a light of their own.

The lenses have a light gradient.  I prefer the light gradient.  It looks sophisticated.  But I also appreciate being able to navigate the hotel lobby without blindly stumbling over a planter.  

"I prefer the light gradient. It looks sophisticated. But I also appreciate being able to navigate the hotel lobby without blindly stumbling over a planter."

Oh, one last thing.  I include with every pair a Y.Chroma Glove Leather & Cypress Sunglass Case.  These glasses should last you for decades, so I felt you should have a case designed to make the trip with you.  Mine come right from my beloved Valencia, Spain  — made by hand by my pal Ruggero. He and Ale run the fabulous Oobuka leather studio right up the street from the Mercado Central.