[munificent]

I strongly disagree with the claim that it's a hoodie simply because it has a hood. Many hooded garments are not hoodies. To be a hoodie, it must be made out of thicker sweatshirt material.

A long-sleeve T-shirt with a hood is just a long-sleeve T-shirt with a hood.

[mathgeek]

Indeed. Anyone who lives near a beach in a warm climate is likely familiar with these long sleeve hooded “tees”.

[abhibeckert]

As someone who lives near a beach in a warm climate... I've never seen anyone wear one of these nor have I seen them for sale in stores.

I can't imagine when I'd wear one either - if I want protection from the sun I'll wear a hat or sunscreen - not a hood.

[__MatrixMan__]

My whole climbing crew has made the switch from hats and sunscreen to sunshirts. They fit under a helmet, and they feel less cancery than repeatedly slathering on some goo and crossing your fingers. It's one thing if you're free to roam about to a more comfortable area, but if you're stuck on belay duty on the sunny part of the face, you'll be happier with a sunshirt.

And then you're used to it, and you start wearing them elsewhere too, because why bother with lesser protection?

They may be more popular at higher altitudes than at the beach though. Beach folk have a bit more atmosphere protecting them.

[llbeansandrice]

I wear poly ones that are spf50 all the time when I’m fishing so I don’t need to worry about applying sunscreen to large parts of my body multiple times a day.

[bitvoid]

I typically have really short hair, so I wear one with the hood on when it's chilly inside, but not so chilly that I want the heater on or want to wear a sweater.

[munificent]

Almost every serious fisherman that I know or watch on YouTube wears long sleeve SPF shirts with hoods.