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Questions related to staying healthy or dealing with health issues during outdoor activities. Answers given here are not intended as a replacement for professional medical advice. Please do not use this tag to ask for specific medical advice. A Dr should always be consulted to confirm any advice given

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

The short answer is, it varies. The three factors that most influence the UV transmission factor of clothing are kind of obvious: Material: Some materials are better at absorbing UV than others; fo …
Ilmari Karonen's user avatar