A raglan T-shirt or baseball shirt is characterized by the sleeves which extend completely to the collar in one piece. The seam goes from the underarm to the collar. Typically, the sleeves of the baseball shirt have a different color than the rest. Mostly, the T-shirt is white, and the sleeves have a color such as blue, black or red.
Nowadays, you can be more creative and unusual color combinations make the T-shirt a real hit. The opposite of a raglan shirt is a set-in sleeve. Besides the T-shirt, there are also raglan sweaters. The raglan sleeve has shoulder seams that run across the front of the chest.
The shape is comfortable, and you see it a lot in sportswear. Especially knitted sweaters are raglan sweaters. It’s easy to knit, in a single piece from the top-down. There is no shoulder seam.