- 100% polycarbonate- Can be worn over existing prescription glasses- Sidearms are vented to help prevent fogging- The large, single, continuous lens is hard-coated clear polycarbonate- Lightweight, easy to wear- Impact level: Medium- Lens type is transparent/clear - Great for Indoor & Outdoor use- One size fits most- Approx. dimensions: 16cm x 5.5cm x 13.5cm- Approx. Weight: 41.3g