Look great and explore the island in this Peter Millar Women's Lightweight Long-Sleeve Sun T-Shirt in Cottage Blue. This Lightweight Long-Sleeve Sun T-Shirt by Peter Millar features long sleeve, wicking, UPF 50 sun protection and easy-care, crew neck. This Peter Millar Lightweight Long-Sleeve Sun T-Shirt is made of 88% Polyester, 12% Spandex.