Felix Gray creates advanced eyewear with proprietary Blue Light lenses that provide real relief from digital eye strain. Their Amber lens filters up to 23X more of the most impactful Blue Light emitted by screens and is clinically proven to increase natural melatonin secretion by up to 2X. Their Clear lens filters up to 15X more than other clear lenses. They also offer a high-performing ocular support supplement, InSight by Felix Gray, designed to protect long-term eye health. They offer virtual fit specialists, free shipping, returns, and exchanges, a 30-day money-back guarantee, and a one-year manufacturer warranty.