Yes. The adjustable temples rest lightly behind the ear with no pressure, and the rubber grip points at the nose and temples prevent bounce during fast strides. Tested on marathons, ultras, and track workouts, they stay put from start to finish.

For trail and rides that start at dawn or end at dusk, EVO+™ photochromic lenses adjust automatically to changing light, from tree cover to full brightness. For road and track where light is more stable, SPEKTRA+™ high contrast brings out terrain detail. All SPEK lenses are interchangeable, so you can switch between them depending on the ride.

The vented geometry lets air flow continuously, even as your heart rate climbs. Hydrophobic and oleophobic coatings on the lens shed sweat and moisture without wiping. Tested on intervals, hill repeats, and long sessions in the heat.

Two years on frame manufacturing defects. One year on lenses. Beyond that, the SPEK Protection program gives you 40% off the same pair if it's damaged in sport within two years of purchase. No paperwork. Just a photo and confirmation it happened during activity.

Rinse with cold water to remove dirt and sweat, then wipe with the microfibre pouch included with your sunglasses. The pouch doubles as a cleaning cloth. Avoid paper, fabric, and chemicals that can damage the coatings.

Yes. 30 days for a refund or exchange, return shipping covered by SPEK. Conditions: glasses must be intact, unscratched, in original packaging. If they were used in sport and don't work for you, the SPEK Protection program covers activity-related damage.