Tech: Interchangeable Lenses, Interchangeable Gator-Lok Temples, Venting, CushinolΙ, Cam-Action Hinges, Mastoid Temple Grip, Anti-Ocular Intrusion Systemٮ Fit Size: Best fits a Medium to Large profile Weight: 0.70 oz. All Hardtop sunglasses include 4 sets of lenses for all light conditions and 2 sets of Interchangeable Temples All lenses offer 100% UV protection (including yellow, orange and clear). 1. Polarized: for superior glare reduction. 2. Orange Crystal: 57% VLT for medium light. 3. Yellow Crystal: 80% VLT for low light. 4. Clear Crystal: 98% VLT for very low to no light Interchangeable Temples: 1. For Everyday Use 2. For Extreme Conditions