Born of Montana, FKT Trail Sunglasses is a new Butte-based company crafting performance eye wear for runners, hikers, and outdoor enthusiasts. Founded by athletes who know the demands of mountain weather and high-altitude terrain, FKT—short for “Fastest Known Time”—combines durability, comfort, and style into every pair of shades. With frames designed to stay put during movement and lenses built to handle everything from bright snowfields to dense forests, FKT Trail Sunglasses are as tough and reliable as the people who wear them.
What sets FKT apart is a deep connection to the local community and landscape. Every product is field-tested on the trails of the Highlands, the Continental Divide, and throughout Southwest Montana. The founders are passionate about sustainability and have committed to eco-conscious packaging and materials wherever possible. Whether you’re logging trail miles or strolling through Uptown Butte, these sunglasses are made to perform and built to last.
FKT Trail Sunglasses are now available at 5518 Designs in uptown Butte. As a proud supporter of local innovation and outdoor lifestyle brands, 5518 is excited to offer a selection of the FKT line. Stop by the shop to try them on, learn more about the brand, and gear up for your next adventure. It’s the perfect partnership between two Butte businesses that believe in quality, community, and getting outside.
