The Pentax ZT400 Prescription Safety Glasses is a non-conductive frame designed to wrap around the face. Available in 5 color variations, the ZT400 Safety Glasses feature adjustable nose pads for a comfortable fit. These Pentax Safety glasses also come with a head strap attached to the temple tip. Plus, these Pentax Safety Glasses meet the ANSI Z87.1 industry standards and are prescription available. In addition, the ZT400 Pentax Safety Glasses have passed the requirements of a modified ASTM D149-09 test for dielectric strength, and did not conduct electricity up to 1,000 volts for 60 seconds. For more options check out our Pentax Safety Glasses collection.