The Women's Wisp Interchangeable Sunglasses sport a casual style even though Tifosi Optics designed them for running and fitness. These sunglasses include three pairs of lenses to give you the best tinting throughout the day. Each scratch-resistant lens protects your eyes from UVA and UVB rays, and their vented design increases airflow to prevent fogging. The TR-90 frame is highly durable. Adjustable temple pads ensure a secure fit while hydrophilic nose pads prevent slipping.