The Carhartt Rockwood safety glasses with gray anti-fog lenses deliver ANSI Z87.1+ High Impact certified protection in a 24.6g lightweight frame. Built with 2.0mm thick polycarbonate lenses mounted in an 8-curve base, these glasses handle the temperature swings and bright snow glare Montana contractors face daily.
Impact Protection and Specifications
These glasses meet ANSI Z87.1+ High Impact standards and carry CSA Z94.3 certification. The numbers that matter for jobsite compliance:
| Specification | Value |
|---|---|
| Lens Thickness | 2.0 mm polycarbonate |
| Impact Rating | ANSI Z87.1+ High Impact |
| CSA Certification | Z94.3 Certified |
| UV Protection | 99% UVA/UVB protection |
| Weight | 24.6 g |
| Lens Curve | 8 Curve base |
The 2.0mm polycarbonate construction exceeds basic safety glass requirements. That thickness stops more than sawdust — it handles nail gun ricochets, flying debris from demo work, and the occasional chunk of ice falling off a roof edge.
Anti-Fog Performance and Fit Dimensions
The suspended anti-fog coating tackles Montana’s brutal temperature transitions. Moving between a heated truck cab and -20°F outdoor air kills productivity when glasses fog instantly. This coating maintains clear vision in humid environments and temperature transitions — critical when you’re juggling power tools.
The fit measurements tell the compatibility story:
| Dimension | Measurement |
|---|---|
| Hinge-to-Hinge Width | 132 mm |
| Temple Length | 130 mm overall, 85 mm tips |
| Bridge Width | 18 mm adjustable |
| Lens Dimensions | 78 mm diagonal, 45 mm vertical |
The lightweight, slim temple design fits well under hard hats and ear muffs. At 130mm, those temples slide under hearing protection without creating pressure points during 10-hour days. The 18mm adjustable bridge width means they’ll fit whether you’ve got a narrow nose bridge or wider facial structure.
Lens Options and Applications
Carhartt offers three Rockwood lens options: clear (CHB710DT) for indoor work and low light, gray (this model, CHB720DT) for bright conditions, and sandstone bronze (CHB718DT) for outdoor work with enhanced depth perception.
Gray lenses earn their keep on Montana jobsites. They block UV while maintaining true color perception — essential when you’re matching stain colors or identifying wire colors in bright sunlight. The gray tint cuts glare off snow, metal roofing, and concrete without the color distortion that bronze lenses create.
Common applications include outdoor construction and landscaping, industrial work requiring high-impact protection, humid environments where fogging is a concern, and everyday utility use in bright conditions. Pyramex manufactures these glasses under license for Carhartt, bringing decades of safety eyewear expertise to the design.
The warranty covers manufacturing defects for one year through Pyramex, with typical 30-day returns through major retailers. Model number CHB720DT identifies this specific gray lens version for reordering.
Frequently Asked Questions
Q: Do these glasses meet OSHA requirements for construction sites?
Yes. These glasses carry ANSI Z87.1+ High Impact certification, which exceeds OSHA’s requirement for protective eyewear on construction sites. They also meet CSA Z94.3 standards for Canadian jobsites.
Q: How thick are the lenses compared to standard safety glasses?
The 2.0mm polycarbonate lenses match or exceed most safety glasses. That thickness provides solid impact resistance without adding weight that causes fatigue during all-day wear.
Q: Will these fit under a hard hat with ear muffs?
Yes. The lightweight, slim temple design specifically fits well under hard hats and ear muffs. The 130mm temple length with narrow 85mm tips slides easily under hearing protection.
Q: What’s the difference between the gray and bronze lens options?
Gray lenses (this model) work best for everyday utility use in bright conditions. Bronze lenses (CHB718DT) are designed for outdoor work with enhanced depth perception. Gray maintains true color recognition while bronze shifts colors but improves contrast.
Q: Does the anti-fog coating really work in cold weather?
The suspended anti-fog coating handles temperature transitions better than uncoated lenses. It’s specifically effective in humid environments and when moving between temperature extremes — exactly what Montana contractors deal with daily.
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