Will Filson Feather Cloth fabric protect me from UVA and UVB radiation?
Filson tested their Feather Cloth fabric for its Ultraviolet Protection Factor (UPF). UPF is a rating for apparel, similar to Sun Protection Factor (SPF) for sunscreen. UPF measures the ability of a garment to block harmful UVA (Ultraviolet Aging) and UVB (Ultraviolet Burning) rays. Filson found that the UPF varies, depending on the color. The darker colors block more rays than lighter colors.How does Feather Cloth look after it has been washed? Do I need to iron it? Since it is made from 100% cotton, you may need to iron your Feather Cloth shirt after washing. Feather Cloth is such a lightweight cotton that it does wrinkle easily. On the other hand, it air dries very quickly.