Amber Lens Safety Glasses are an excellent choice for those working outside early or late in the day, those working in typically overcast environments or with consistent haze and Fog. The Amber lens improve visual acuity and contrast of Objects in the User's Vision. An Amber Lens does this by blocking high intensity UV Lighting. The Dallas pair of safety glasses have comfortable wrap around ear pieces with very good side impact protection. These glasses are lightweight, and will stay in place with their excellent ear pieces and snug nose piece.