polyester t shirts
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Anti-Uv Polyester Elastane Solid Dyed Knitting Jersey Fabric For T Shirts
As sun protective clothing is usually meant to be worn during warm and humid weather, some UV-blocking textiles and clothing may be designed with ventilated weaves, moisture-wicking and antibacterial properties to assist in cooling and breathability. UPF (Ultraviolet Protection Factor) represents the ratio of sunburn-causing UV without and with the protection of the fabric, similar to SPF (Sun Protection Factor) ratings for sunscreen. While standard summer fabrics have UPF ~6, sun-protective clothing typically has UPF ~30, which means that only 1 out of ~30 units of UV will pass through (~3%).
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