Smith Optics Sport u0026 Performance 205882 Shift XL MAG Sunglasses

The Smith Shift XL MAG sunglasses deliver maximum coverage and performance for cyclists, mountain bikers, and trail runners who demand unobstructed vision at speed. Built on the foundation of Smith’s best-selling Shift MAG and scaled up for larger faces, these oversized shield sunglasses combine the brand’s magnetic MAG lens-swap system with ChromaPop lens technology for enhanced contrast and natural color.

ChromaPop Lens Technology: See Every Detail

Smith’s ChromaPop lenses filter specific wavelengths where red, green, and blue light overlap—the zones that cause color confusion and make terrain look flat. By eliminating this crossover, ChromaPop delivers sharper definition and more vivid color, so roots, rocks, and trail features pop out instead of blending together. Available in multiple tints including photochromic options that adapt from 20% to 85% visible light transmission, these lenses handle dawn starts, midday sun, and shaded forest sections without a swap. The smudge- and moisture-resistant coatings keep optics clear when you’re working hard.

MAG Magnetic Lens System: Fast, Fingerprint-Free Swaps

The MAG interchangeable lens system uses magnets and temple-mounted toggles to lock lenses securely in place. Release the toggles, lift out the lens, and snap in a replacement—the whole process takes seconds and never touches the lens surface. Each pair includes a bonus clear lens for low-light or night riding. The 5-base cylindrical shield wraps slightly for peripheral coverage while the high-impact TR90 nylon frame stays lightweight and durable through rough descents.

Fit & Features Built for Performance

Sized for large-to-XL faces, the Shift XL MAG features two-position adjustable Megol nose pads and Megol temple grips that stay put through climbs and fast descents. AutoLock hinges hold the frames open for easy one-handed on and off, even with gloves. Reviewers note excellent fog resistance thanks to the frame sitting slightly off the face for airflow. The wide shield provides goggle-like protection from wind, dust, and trail debris while maintaining the feel of traditional sunglasses. Includes a performance hard case and microfiber pouch.

“The Shift XL Mags didn’t fog once during my time riding with them.” — Haven Outdoors reviewer

These sunglasses are prescription-compatible via Smith’s snap-in prescription adapter for performance shield styles. All lenses provide 100% UV protection.