Altered Latitudes performance tees are manufactured using PURE-tech wicking technology. PURE-tech is permanent moisture management, woven directly into the fibers to deliver premium performance in a range of superior fabrics. It will not fade or wash away with time. Our t-shirts do also offer a UPF 50+ UV/Sun Protection which will protect you from the harmful UV rays. We have also added an anti-microbial technology which keeps the fabric fresh and odor free.