John Lennon’s signature circular glasses are nearly as iconic as the man himself. And once a style piece has been popularized by a rock legend, it tends to stick around for a while. Enter The John Lennon™ Collection by Adlens, the latest in Lennon-inspired eyewear.

Designed to reflect the musician’s enduring style, the collection offers stand-out vintage appeal with a modern edge. Surprisingly, though, the look of these glasses isn’t the coolest thing about them—what really makes them unique is the fact that you can adjust to just about any prescription (-4.5 to +3.5) via the removable dials that fit onto either side of the glasses. Even cooler? The company has a “buy one, give one” program that donates a pair of glasses to a person in need for every pair sold.

Like what you see? Visit Adlens for a closer look, and head to Made Man’s Facebook page to win a pair in this week’s caption contest.