Someone spent 3 years designing these foldable coat hangers
Amazon.com: Retractable Portable Travel Hangers 3 Pcs, Aluminum Alloy Foldable Travel Hangers for Clothes, Lightweight Collapsible Coat Hanger for Traveling, Camping in Hotel, Car(Aluminum Alloy-Silver) : Home & Kitchen
XIAOMI Foldable Travel Hanger Mini Portable Multifunction Clothes Hang – SOLOPICK
Magic Space Saving Clothes Hangers Standard Hangers with 9 Holes Space Saving Hangers, Multifunctional Closet Organizers and Storage, Foldable Closet Storage Coat Hangers for Clothes, 3 Pack, Gray - Walmart.com