Crews ForceFlex Safety Glasses, Black Frame, Gray LensThe ultimate in safety, flexible frame combines with lenses to achieve military-level impact resistance. Thermoplastic frames flex to fit any size face. Stylish and comfortable. Meets military test regiment for high-velocity impact protection. Scratch-resistant. Style: Wraparound; Frame Color: Black; Frame Material: Thermoplastic Urethane; Lens Material: Polycarbonate.