The useful choice here is the fabric mix. Free Fly maps two bamboo fabrics into one hoodie, so you get more coverage where it matters and more airflow through the core.
In the hood, shoulders, and arms, Free Fly uses Bamboo Shade for durable UPF 50+ sun protection and easier movement. Through the body, it switches to Bamboo Lightweight for higher breathability with UPF 20+ protection.
If you want one sun layer that prioritizes maximum protection everywhere, this isn’t that. It’s for anglers who run hot and want the tradeoff: heavier UPF where you’re exposed, lighter fabric where you sweat. Sizes we stock run M through XXL.