X-Ray Protective Glasses Preppie Glasses (70 grams) Anti Reflective LG-500ND: Preppie Glasses with anti-reflective lens (70 grams) Lead Equivalence: 0.5mm 0.25mm lead side shields, and a demi-amber frame weighing 70 grams $1.00 Request a Quote Preppie Designer Glasses Lenses: 0.75mm or 0.5mm lead equivalent RayShield® NewMillenia™ lightweight composite lenses. Frame: Attractive demi-amber designer frame. Side Shields: 0.25mm solid lead sideshields. Model: LG-500N Preppie Glasses With Anti Reflective Lens Weight: 70 grams Lead Equivalence: 0.5mm