The Free Fly Men’s Bamboo Lightweight Hoody is a thin sun layer for hot, humid fishing days. Free Fly gives it a UPF 20+ rating and sets it up for coverage with a crossover hood and thumbholes. They also describe it as ultra-lightweight, breathable, and naturally odor-resistant for long wears.
This is the piece for flats-style days, long wades, and any trip where you want to stay covered without adding much warmth. It’s not an insulation layer. Options here vary by size and by the patterns offered.