The Women’s Long-Sleeve Half Zip Sunblock Top is engineered for active days in the sun. Its 4-way stretch fabric delivers comfort and freedom of movement, while the half zip and high collar provide adjustable coverage and protection from the elements. Fast-drying, wicking properties ensure a fresh, comfortable wear throughout the day. The fabric holds a UPF 50-rated protection against harmful UV rays, so you can safely spend longer in the great outdoors.