Sun Guard Sun Protection to your laundry detergent and it will add SPF 30 to your clothes to protect you from both UVA and UVB rays. Once you've treated your clothes, the protection lasts through the next twenty washes. That's a summer's worth of wear!
Sun Guard is fine for people with sensitive skin and it works if your clothes get wet, making it a good idea to use on your swim suits. It won't hurt the fabric fibers or change the looks of the fabric whether you're treating cotton, silk, linen or rayon.
Best news is that one box (or one load's treatment) only costs $1.99.