Desc. Features Specs & Guarantee *Please note: The USA VISE is NOT compatible with the Vise Side Shields* Introducing Heat Wave Visual's first pair of sunglasses produced in the United States. We have partnered with the most prominent domestic eyewear injection molding facility in California to achieve the perfect balance of build quality, fit, and value. The USA Vise builds upon the Vise legacy with a lightweight Grilamid TR90 premium thermoplastic frame that is uncoated and polished, offering a high luster gloss finish. The uncoated nature of the frame enhances resistance to chemicals, while the TR90 material is overall more durable and flexible. Two traditional high-quality 5-barrel hinges in gold plating securely hold the entire assembly together, contributing to the overall premium fit and finish. Lastly, the USA Vise meets ANSI z87 requirements and includes custom embossed markings on the inside of the temples. The USA VISE meets OSHA eyewear specifications for jobs not requiring side shields and chemical splash resistance. **The USA Vise does not have swappable arms and is non-customizable**-Gloss Black TR90 Grilamid frame assembly-Shatter resistant 2mm polycarbonate lenses-Custom Gold 5 barrel hinge construction-Embossed temples with metal logo emblems-Increased chemical and heat resistance-Low-density lightweight fit -Enhanced flexural bending strength-Microfiber sunglasses bag included-Frames designed and made in the USA-Lenses made in Taiwan-California residents, please read the Proposition 65 warningDisclaimer: Removing arms, lenses and or changing configuration in any way voids Z87 compliance. Z.87 compliant, U6L3 - UV400 - 100% UVA / UVB blocking.Shatter-resistant polycarbonate lenses.Durable TR90 Grilamid frame construction. 100% Satisfaction Guarantee - If you are unhappy with an item for any reason we will gladly accept unworn product in it's original packaging for full refund within 60 days from the date you received it. Warranty: We fully back all of our products against manufacturer's defects. If you have any issues, we will replace any defective or malfunctioning part at no charge. For more information on our warranty policy please visit: Heat Wave Visual Warranty and Returns