A cap earns its place by being worn. The goal is not to keep it untouched; it is to let it become yours without losing the shape that made you pick it up.
Find the fit.
The Camino Nocturno Trucker is built for an easy, adjustable fit. Use the snap closure to find a secure position without pulling the crown too low. The Polvo 01 Flat Brim has a more structured profile; wear it level or slightly forward and give it a little time to settle to your usual shape.
Keep the structure.
For dust or a small mark, start with a soft brush or a clean damp cloth. Use a mild soap only where needed, then blot rather than scrub. Do not machine wash, soak, or leave either cap in high heat. Let it air-dry on a clean towel, with the crown supported from the inside.
Store caps away from direct sun and avoid crushing the brim in a bag. A little wear is part of the record. Neglect is not.