The OnGuard 016 Prescription Safety Glasses is an aviator style, metal frame that comes with removable side shields. This metal construction frame with Spring Hinges temples ensures a secure fit while you work. Available in Gold, Gold/Black, Gold/Demi Amber and Gunmetal, the Onguard 016 safety glasses are prescription available. Plus, an OnGuard replacement Side Shield can be purchased separately. The OnGuard 016 prescription safety glasses meet rigorous industry standards and are ANSI Z87.1 and CSA Z94.3 approved for optimal protection.