Skullerz DELLENGER Safety Glasses feature adjustable temples that shift up or down and lock into place for a custom fit on a variety of face sizes. These safety glasses feature polycarbonate lenses to protect against impacts and filter 99.9 percent of harmful UVA, UVB and UVC rays. The rimless design makes for a lightweight and comfortable fit and provides a full field of vision. The integrated, contoured nose bridge won't slip or pinch and the flex-fit temples reduce pressure and provide stay-put all-day comfort. These UV protection glasses are great for protecting your eyes during indoor and outdoor work like construction, carpentry/woodworking, demolition or landscaping. Also great for outdoor hobbies like boating, skiing and fishing.