Duncan Polarized Sunglasses

Duncan Polarized Sunglasses – Iconic TR-90 Frame | Made in the USA by Island Optics

Timeless looks, serious performance. The Duncan Polarized Sunglasses by Island Optics combine a classic frame silhouette with subtle curves and cutting-edge technology built for the outdoors. Whether you’re hitting the trail, summiting a peak, or out on the water, Duncan is ready for all of it.

Key Features

• Proprietary OX2 Lenses – Blocks 100% of UV light for maximum eye protection
• Polarized Lenses – Eliminates glare for crystal-clear, no-glare vision
• TR-90 Frame – Lightweight, highly durable, and flexible for active use
• GatorGrip Technology – Prevents slipping and sliding when you break a sweat
• 3 Frame Colors – Matte Black, Matte Tortoise, Matte Translucent Gray
• 6 Lens Colors – Gray 12, Brown 12, Yellow Low Light, Blue Flash Mirror, Red Sunset Mirror, Green Flash Mirror
• Made in the USA – Quality craftsmanship built to last

The Duncan frame is iconic for a reason — clean lines, a timeless silhouette, and the kind of performance that keeps up with your most adventurous days. Explore any trail, summit, or waterway with clear, confident vision.

By Island Optics. Made in the USA. TR-90 frame with polycarbonate OX2 lenses.