Helly hansen adult watersport buoyancy vest the helly hansen adult watersport buoyancy vest has been designed for high activity watersports in inshore waters giving assistance to competent swimmers a full zip fastening is complimented by four additional clip fastenings for a secure yet comfortable fit adult buoyancy aid full zip fastening with additional clips for competent swimmers helly hansen branding for use by good swimmers only in sheltered waters with nearb