As dependably rugged as you, the Lassen features impact-rated polycarbonate lenses and durable nylon frames for long-lasting performance. Compliant with both ANSI Z87.1+ and CSA Z84.3 protective standards, the Lassen sports a distinctive Wayfarer style that suggests everyday sunglasses more than safety glasses. The Lassens thermoplastic rubber (TPR) temples and nosepieces provide non-slip grip and improve comfort for all-day wearability. For safety glasses with comfort-improving features, a lightweight design and ultimate style, the Lassen is a safe choice.