The STUDSON SHK-1 Dual Cert collection is built for job sites that require both US and Canadian compliance. Every helmet in this line carries dual SEI-certified credentials — ANSI/ISEA Z89.1-2014 (R2019) Type II and CSA Z94.1-15 Type II — with a Koroyd®-dominant interior purpose-built to meet the impact requirements of both standards. Choose the Vented Class C for non-electrical environments, or the Non-Vented Class E for sites where electrical hazard protection up to 20,000V AC is required. Same STUDSON technology stack. Built for the job site you're actually on.
