Simply slip these right over your regular glasses, even bi-focals. So lightweight, you won’t know you’re wearing them. SAVE BIG $$ over prescription sunglasses. TECHNICAL DETAILS: The “lightest” most scratch resistant UV400 POLARIZED lens available. The optical quality of this lens is as good as your prescription glasses (THESE ARE NOT THE STUFF YOU SEE IN DRUG STORES!) Expect superb comfort, year after year. Lifetime Warranty on workmanship & material.

FRAME SIZE: SLIMLINE (M) fits over frame sizes up to 5 1/4″ x 1 1/2″, WIDELINE (ML) up to 5 7/16″ x 1 3/8″, STYLE LINE (MX) up to 5 1/2″ x 1 1/2″, PILOT (L) up to 5 7/16″ x 1 7/8″, AVIATOR (XL) up to 5 1/2″ x 2″.