This t-shirt is made of 100% polyester and is designed to protect you from the outdoors. The shirt is protected with UPF 30 - which means only 1/30th of the sun's UV rays can reach your skin! It is also quick dry and can be worn in the water. The manta ray represents strength and wisdom. This mantaray shirt not only has meaning, but will support you in the great outdoors! All Items ship direct from Maui, Hawaii.