Designed to withstand inhospitable environments, the Stirling Exploration Suit provides a base level of protection from environmental hazards including radiation. Combining Caldera's advanced insulation fabrics with sophisticated polymers, the Stirling is able to safeguard the wearer whilst minimizing disruption to movement. Additionally, a self-cleaning system automatically activates after radiation exposure to expunge dangerous excess down to nominal levels. This helmet is only compatible with the Stirling Exploration Suit. The ASD Edition was contracted specifically by Associated Science & Development to provide protection for their scientists working in laboratories with radioactive materials.