Emerald hiking > trekking sunglasses, organic sourced frame. With polarized lenses 100% UV category 3, VLT 12%, for good weather. Removable side shells, mixed and universal model, without correction. Cleaning pouch with inside pocket for removable shells included in the box. Zenith is available in 2 sizes: Small : head circumference from 51 to 56 Large: head circumference from 56 to 62 Adopt the Zenith Polarized hiking sunglasses by Izipizi. They will seduce you with their wide field of vision to allow you to practice your outdoor sports and discoveries. We like its elegant style and its practicality. .