High Balance Slam - Sport Reader Sunglasses True Sport Reader Sunglasses - The perfect combination of form and function. Great for cycling, golfing, aviation, and any active lifestyle TR90 Frame Construction - High Balance frames are constructed of the highest quality TR90 material (Thermoplastic polyamide), creating sunglasses that are extremely lightweight, flexible and durable Zone Reader - Vision correction zone built right into the medium grey lenses Non-Slip Nose Pads - Non-slip rubber nose pads ensure our sunglasses are comfortable and sit perfectly on your face Travel Case & Cleaning Cloth - Every pair of High Balance sunglasses comes with its own premium High Balance hard travel case, pouch and cleaning cloth