The Julbo Trail Sunglasses features a soft, flexible, photochromic lens made from NXT® that transitions automatically from a high contrast Category 2 to dark Category 4 in brighter light conditions. The flexible lenses increase safety.  

Weighing in at an impressive 0.9 ounces, the lightweight Trail is ideal for running, cycling and multi-sport. Julbo is the only sunglass manufacturer utilizing the flexible lens material in the outdoor sunglass market. Panoramic lenses provide an extra-wide field of view.

Adjustable airflow with 2 positions due to the cut of the lenses. Supple shock-absorbent insert keep the Trail in place on your nose. Elastomer shock absorbers at sides give maximum protection. Elastomer insert at the temple end for optimum hold. Elastic flat cord keep sunglasses in place during the most extreme sports.

NXT Zebra® Photochromic polycarbonate lenses
• Lens Automatically Adjusts to Varying Light Intensity
• Block 100% of UV rays
• Offer Category 2 to 4 Protection
• Optimal Protection from Shadow to Strong Sunlight
• Durable Antifog Treatment

• NXT® lenses were developed for the U.S. Army. Made from low-temperature casting techniques which reduce internal stresses in the material; this improves optical quality, gives excellent transparency, and increases long-term stability.
• Zebra® photochromic darkens or lightens as the surrounding brightness changes from 40.7% to 6.6% of the visible light transmission depending on luminous intensity. Wide amplitude in categories 2 to 4, with fast activation speed of 22 to 28 seconds. Antifog treatment reduces fogging. Recommended for mountain biking, trails and climbing.