readers.com: the zeek bifocal reading sunglasses for men and women - glossy black with grey, 1.25 readers a sporty look with functional lenses makes the perfect combo. the zeek has tinted bifocal style lenses that make it the style for all of your outdoor adventures. disclaimer: all references to "bifocals" herein refer to readers having unmagnified lenses containing a "bifocal style" single powered reading glass insert located on the lower portion of the lenses.