The sun hat is a step above the pith for carriers who want real UV protection without the bulk of a plastic helmet. UPF50+ nylon fabric with mesh lining and airflow grommets — it actually breathes, which the pith doesn't, and the 3-inch brim gives you the same ear and neck coverage.
 
Lightweight enough that you won't notice it after an hour on route. Packable, so it folds down into a satchel or LLV glove box when you're not on the exposed portion of your route. Made in the USA.
 
Specs:
 
• UPF50+ nylon fabric — blocks 98% of UV
• Breathable mesh lining with airflow grommets
• 3-inch brim — covers ears, sides of face, and nape of neck
• Lightweight and packable — collapses flat for storage
• Made in the USA
• Regulation style, USPS compliant
Sun hat vs. pith helmet: If breathability is the priority, this wins. The mesh lining keeps your head cooler than the solid plastic pith shell. If maximum coverage or low price is the priority, the pith at $30 is the call.
 
USPS compliant. Uniform allowance eligible.