The long-sleeved incarnation of our Basel 1 Black men's t-shirt is a versatile class, with long sleeves for comfort and warmth. The Basel fabric has to be touched to be believed. Extraordinarily soft, powerfully durable and altogether wonderful to wear, it's made from a blend of 95% micromodal (made from sustainably forested beech trees) the result of countless tests and sampling exercises by our fabric technicians. Suitable for sleeping, lounging or outdoor layering, there's not much this T-shirt can't do. Because of the combination of its softness and thermostatic qualities of the fabric (the weave responds to ambient temperature to offer more insulation when it's cooler), it's perfect for activities such as yoga. And a long-haul flight is a lot more bearable if you're wearing super-soft Basel.