A joint adventure with Article One eyewear, the GTGlass frames are made in Italy with TR90 polymer plastic, an incredibly durable, lightweight and hypoallergenic material made to hold its shape, even in the highest temperatures. Silicone nose pads are made to grip and hold – with a wire core skeleton that athletes can squeeze tight during a workout, and let loose afterward. Silicone pads wrap around the ear for additional comfort and grip. the frames include divel, Italian-made, CR-39 polarized lenses that block 100% of UVA/UVB rays and prevent road glare, plus the back side has an extra anti-reflective coating to counteract any reflection coming from the eye. spring hinges allow for give and bounce back in case of rough wear. Every pair of the GTGlass is delivered in an impact resistant molded carry case wrapped in recycled PET fabric with clip, waterproof zip and Ciele detailing. Also included, our custom retainer strap for an extra secure fit for off road runs and added reflective detailing for night runs.