Coolibar's mission is to keep customers safe from sun damage, protect those who suffer from a sun-related medical condition, and prevent everyone from developing one. Coolibar is committed to testing their fabrics for UPF 50+ protection, and for 20 years they have developed the most technical, elegant sun protection on the market. In fact, Coolibar is the first sun protective clothing company to receive The Skin Cancer Foundation's Seal of Recommendation. Are we surprised why so many dermatologists recommend these shirts?
More About Coolibar's UPF Fabric Testing Protocol:
Step 1: Coolibar analyzes every fabric for UPF and UVA/UVB ratings before putting it into a product. Each one is tested in 10 spots multiple times to guarantee true UPF 50+ protection that blocks at least 98% of damaging UVA/UVB rays using AATCC 183 Standards.
Step 2: The fabrics that pass Coolibar's initial UPF tests are then rigorously tested to verify UPF 50+ protection for the lifetime of the garment by simulating real-life situations, including: colorfastedness by fabrics intended use, measurement of residual level of UV-protection after exposure to conditions that related to about 2 years of seasonal use - ASTM D6544 Standards, colorfastedness to chlorinated pool water, and 100 hours of light exposure.
Step 3: The fabrics that meet Coolibar's high standards are then put into production and every dye lot produced is tested for UV transmittance to assure they always provide world-leading UPF 50+ protection in every garment.
For more information, please visit Coolibar's site.