Transitions Optical, Inc. and Dragon have announced an expanded product portfolio, launching EnduroX trail sunglasses with Transitions® adaptive sun lens technology, ideal for mountain biking and trail running environments. Last year, Dragon Alliance and Transitions Optical partnered to produce a snow goggle with Transitions adaptive technology incorporated into the goggle lenses.

“There isn’t a better time than on the heels of a tremendously successful first winter season with Dragon to announce our product expansion into the EnduroX sunglasses,” said Larissa Bryan, director, sunwear, Transitions Optical. “From skis and snowboards in the winter months to hiking and mountain biking in the spring, summer and fall, Dragon loyalists can now enjoy the adaptive technology they’ve come to know in their snow goggles in sunglasses.”

With a minimalist lightweight frame and fully adjustable temples and nosebridge, the Dragon EnduroX combines a classic semi-rimless sport frame with state-of-the-art innovation to perform in a range of outdoor activities, including mountain biking and trail running. In addition, the light-weight injected TR90 frame material contains integrated frame ventilation for maximum air flow. Currently the EnduroX is available in a Jet / Transitions lens (yellow to gray).

The partner expansion with Dragon aligns with National Sunglasses Day (June 27) – an annual day that increases awareness on the importance of UV protective eyewear. And over the coming months, Transitions Optical will further its adaptive sunwear technology to include new offerings from other best-in-class partners.

Check out the EnduroX sunglass and find a retailer near you at or e-mail To learn more about Transitions adaptive sun lens technology, visit