Long Sleeve T-Shirt (Irish Kelly Green). Our super soft, 100% cotton longsleeve tees are a comfortable and stylish alternative to a short sleeve t-shirt. Designed for a perfect fit, each long sleeve tee is made for maximum comfort while at work, lounging about the house or playing with the kids. Each long sleeve cotton t-shirt are casual enough to wear anytime yet can be a nice clean cut shirt when dressing up.