With retro mountaineer styling that takes you back to the early days of exploration, Native Eyewear Mammoth XD9038 Polarized Sunglasses can help you get to those far-off zones you've always wanted to explore. The ultrafunctional frames feature vented hooding and side shields for extra protection. Rhyno-Tuff Air Frames are made from eco-friendly material that is extremely lightweight, yet durable enough to withstand high-velocity collisions and extreme temperatures. N3 polarized lenses reduce glare. These polycarbonate lenses deliver 100% UV protection, block more than 90% of potentially harmful blue light, and have coatings to resist water, dust, dirt, oil, and fingerprints. Select styles have mirror coatings to help cut glare even further. Hypoallergenic Cushinol nose pads and temple tips ensure a secure, comfortable fit. Native polarized sunglasses come with a microbag and a mfrs. lifetime limited warranty. Manufacturer style #: XD9038. N3 lenses with 99% polarization efficiency to combat intense glare Ophthalmic-grade polycarbonate lenses deliver 100% UV protection, block harmful blue light Oleophobic and hydrophobic coatings resist water, dust, dirt, oil, and fingerprints Select styles have mirror coatings to help cut glare even further Eco-friendly Rhyno-Tuff Air Frames with side venting Cushinol nose pads and temple tips for a secure, comfortable fit