NASA will wear high-tech Prada long johns to the Moon.

We’ve seen Axiom Space and Prada’s collaboration on the Axiom Extravehicular Mobility Unit (AxEMU) spacesuit. . Now the company has revealed the Liquid Cooling and Ventilation Garment (LCVG) that astronauts will wear underneath it when Artemis IV returns humans to the Moon in 2028. The LCVG also houses the ventilation system that su …
Read the full story at The Verge. And, should the primary system fail, there is a backup, unlike older cooling suits.