A rounded pantos frame gives the Izipizi #D Reading Glasses their fit, and flex hinges are what make that fit last through repeated wear. Rather than pressing straight against the temples, the arms flex outward to match the width of a face, so the frame holds snug without pinching. That same flex construction resists the breakage and warping that stiffer hinges pick up over time. A +1. 5 diopter lens delivers a lighter correction for early-stage presbyopia, still scratch-resistant enough for daily use. What Our Gearhead(R) Experts Are Saying:"I reach for these dozens of times a day, on for a menu or a label and back in my shirt pocket a minute later, and the hinges never feel loose no matter how many times I've folded them that day."