Does it fit large heads?
The hat covers head sizes from 22.4" to 26",and it has an elasticized locking draw cord at back to adjust for head size.That makes it fitted for most people
Does the hat provide proof of the UPF 50 sun protection?
Yes the hat has sun protection, and it is UPF50+, which keeps you from the sun while fishing, hunting, traveling, climbing
Can this hat be folded and shoved into a backpack without it getting all bent up?
The hat can be easily rolled up and put into tote bags/backpacks/duffel bags/beach bags without breaking
Can this protect head from the rain?
The hat is waterproof and rainproof, and protects the head from getting wet, but it is not recommended to wear it in heavy rain, and it is necessary to protect the body from catching a cold