This is the perfect shirt for those in-between season days. The three-quarter-length sleeves are just long enough to ward off a chill, yet expose enough of your arm to act as a mini air conditioner, should the temperature spike.
The fabric is just about perfect, too: an easy-care blend of 60% cotton/40% polyester. The cotton lets you breathe, while the polyester ensures that you won't be totally wrinkled by the end of a (long) day. Machine wash. Imported.