What the AxEMU Liquid Cooling Garment Is—and Why It Matters
Prada’s contribution to NASA’s Artemis-era spacesuit is a Liquid Cooling and Ventilation Garment, an inner layer of the Axiom Space AxEMU suit that combines high-end fashion construction, engineered textiles, and fluid circuits to control astronaut temperature and breathing in the harsh vacuum and extreme thermal swings of the lunar surface. Sitting next to the skin, this garment is responsible for moving heat away from the body, keeping respiratory gases balanced, and maintaining comfort during spacewalks that can last many hours. While the outer shell gets attention for style and protection, Axiom Space notes that the LCVG “will be one of the few layers standing between [astronauts] and the unforgiving environment of space,” making it central to astronaut thermal management, safety, and performance on the NASA Artemis mission.
How Water, Tubes and Redundant Loops Keep Moonwalkers Cool
The AxEMU Liquid Cooling and Ventilation Garment works like a wearable heat exchanger. A dense network of tubes carries chilled water across the astronaut’s major muscle groups, absorbing excess metabolic heat that would otherwise build up in the sealed suit. That warmed water is routed to the life-support system, where heat is expelled into space. This plumbing must be light, flexible, and durable enough to withstand repeated movement without kinking or leaking. Axiom Space’s Prada spacesuit design goes a step further than legacy NASA gear by adding a second, fully redundant cooling loop. If the primary circuit fails, a backup system takes over immediately, eliminating a single point of failure in astronaut thermal management. This design choice aligns the liquid cooling garment with Artemis program goals: spacewalk systems must support longer, more intense lunar operations without compromising safety.
Breathable by Design: Managing Oxygen and CO₂ Inside the Suit
Temperature is only half the survival equation; breathing in a sealed helmet demands equally careful engineering. Inside the AxEMU, the LCVG includes a dedicated ventilation loop, separate from the cooling water circuit. Tubes route fresh oxygen past the astronaut’s face while guiding exhaled air back to the life-support system. There, carbon dioxide is removed before oxygen is recirculated. This continuous flow clears CO₂, prevents local buildup near the nose and mouth, and supports steady oxygen delivery during long, demanding lunar spacewalks. Because Artemis missions plan more ambitious surface science and longer extravehicular activities than earlier programs, the garment’s ventilation design directly affects endurance and concentration. By bundling thermal control and respiratory support into a single, close-fitting layer, the Axiom Space AxEMU LCVG turns the inner suit into an active, responsive interface between the astronaut’s body and the vacuum outside.
What Prada Brings from Luxury Fashion to Lunar Engineering
The collaboration between Axiom Space and Prada highlights how fashion know-how can solve hard engineering problems at body level. Prada’s work on the AxEMU and its LCVG centers on design, pattern making, and advanced materials—skills refined in luxury tailoring but highly relevant to spacesuits. A close, accurate fit keeps coolant tubes and ventilation channels aligned with muscle groups and the face, improving both comfort and performance. According to Prada’s Lorenzo Bertelli, the brand contributes expertise in “design, pattern making and advanced materials,” helping transform technical requirements into a garment astronauts can actually move and work in for hours. Precision cutting, engineered knitting, and thoughtful seam placement reduce pressure points and chafing. In effect, the Prada spacesuit design shows how fashion’s focus on fit, wearability, and textile science can meet extreme physiological demands on the Moon.
A New Template for Cross-Industry Space Innovation
Beyond the individual garment, the AxEMU LCVG signals a broader shift in how space hardware is developed. Artemis is not about short flags-and-footprints missions; it aims at a sustainable human presence, which demands spacesuits that function more like technical sportswear than rigid armor. By bringing a luxury fashion house into a high-stakes aerospace project, Axiom Space demonstrates that material science, human-centered design, and precision manufacturing from the fashion sector can advance life-support systems. The LCVG is hidden beneath the outer shell, yet it underpins the AxEMU’s promise of longer, safer lunar excursions. This partnership suggests a template for future space projects: instead of relying only on traditional aerospace suppliers, agencies and contractors can tap industries that excel at comfort, fit, and complex garment engineering to solve problems that directly affect how humans live and work off-world.
