UV resistant yarn, UV retardant yarn, anti-UV yarn UV resistant yarn, UV retardant yarn, anti-UV yarn: Testing Standard: GB/T 18830-2002, AATCC 135, AS ... value (=5%), UPF=50(standard value is =30).Product uses: I t can be widely used in women's wear, sports ... , wigwam, especially during hot summer and in areas with high UV irradiation.Specification: 50D-300D ...