Sun-Protective Clothing Basics
- UV exposure poses risks in both warm and cold conditions
- Exposure risks are greater at higher elevation and equatorial locations
- For more UV protection, wear both UPF clothing and sunscreen
Understanding UPF Ratings
- Ultraviolet Protection Factor (UPF) indicates how much UV radiation can reach skin through a fabric
- The higher the UPF rating, the more effective the sun protection
- UPF 15 allows roughly 7% of UV rays to pass through
- UPF 30 allows roughly 3% of UV rays to pass through
- UPF 50 allows roughly 2% of UV rays to pass through
- UPF 50+ allows less than 2% of UV rays to pass through
UPF Clothing Materials
- Hot weather: Choose lightweight, moisture-wicking UPF garments
- Cold weather: Choose UPF-rated merino wool or synthetic base warmer layers
Read full article: How to Choose Sun-Protection (UPF) Clothing
