16
votes
2answers
6k views

Is it possible to sunburn through clothing?

I sat for 45 minutes last summer in the hot sun (100 degrees) I was pinned in on the bleachers so I wans't able to get up and move, I could feel the sun burning through my pants, now I have everyday ...
16
votes
2answers
9k views

What's the UPF of a T-Shirt or jeans?

Many outdoor clothing items advertise themselves with a UPF (Ultraviolet protection factor) of 30 or even 50. How does that compare with a normal cotton T-Shirt or a pair of jeans? Do I have to use ...