I was looking for a comfortable pair of polarized sunglasses with bifocals that I could wear with my motorcycle helmet on and these do the job.  The glare is kept to a minimum especially around sunset which is critical.  They are a bit on the large size.  The bifocal part is smaller than on other glasses I have which is what I wanted for these glasses.  Most of the time I won't use the bifocal part but when I need it, it's there.