Temperature contrast is doing the work here. The white driveline (cool) against deep blue (cool) creates visual tension that reads as intentional rather than random. Wrinkle-resistant weave that packs and unpacks looking the same. Fifteen hours of transit and the fabric still hasn't betrayed you. Two pieces, one carry-on, and you just solved packing for the whole trip.
Finish with white minimalist sneakers and a dark nylon carry-on that fits overhead.