Prescription safety glasses by Bolle, the Bolle Tryon is a stylish wrap-around style safety frame. Sporty in appearance and light-weight and comfortable to wear. They would make wonderful safety sunglasses. Stylish and comfortable certified prescription safety glasses. Order your new Bolle Tryon prescription safety glasses online. This frame suits prescriptions between -2.00/+4.00 Sphere and -3.00 cylinder corrections.