these sunglasses feature a lightweight Grilamid TR-90 frame for all-day durability

Constructed from a powder coated Steel frame

Provides maximum tension maintenance

TUNEDFIT Dual Lacing System offers a separate and customizable fit for the forefoot and midfoot

On Lightweight Cap Color:Rock these sunglasses feature a lightweightStay cool while you unleash speed in the On Lightweight Cap! This ventilated running cap combines sweat wicking technology with an adjustable fit. Perforated side panels provide maximum breathability, while a reflective On Logo adds standout style. Perfect for speedy athletes, the On Lightweight cap offers feel good comfort during your daily miles! Improved fit for easy going comfort Branded adjustable buckle closure Reflective On logo on front panel