Rawlings Color: Black 88% Polyester, 12% Polyurethane Mizuno Color: Navy 84% Polyester, 16% Polyurethane My husband wore these alternately for a long time. Especially the Mizuno one, there is considerable sun damage to both sleeves and the neck area. There is also some abrasion on the back of the neck. I will give these away to anyone who needs them. They will be packed in recycled materials and shipped via Yu-Packet Post.