SMPB branded UPF shirts in black and white, long sleeved and short sleeved.
Sizes Small to 2XL in all variants.
UPF: What it is and why it mattersUltraviolet Protection Factor (UPF)indicates how much UV radiation (both UVB and UVA) a fabric allows to reach your skin. For example, a UPF 50 fabric blocks 98 percent of the sun's rays and allows two percent (1/50th) to penetrate, thus reducing your exposure risk significantly.
