T-shirt with long sleeves are good in many ways. When the slightly cooler summer days arrive, it's nice to have something warm on your arms without being thick and too hot. Here, a t-shirt with long sleeves will be the solution. In the winter months, they can be used under a sweatshirt so that the little ones can keep warm. All our long-sleeved t-shirts is made in organic cotton and come in many different colorful prints. There is definitely something for everyone. See our large selection below.