Full length tights are illegal.
Leg compression sleeves that cover the calf are legal as long as they are one of four colors (black, white, beige or color of uniforms). They cannot cover the knees and all must wear the same color if two or more teammates are wearing them.
Long sleeve t-shirts can be worn as long as they are the same color as the jersey.
Arm compression sleeves are governed by the same set of rules as leg compression sleeves. However, a player may wear a different color arm compression sleeve than his leg compression sleeve. Once again, the arm compression sleeve can be one of only four colors and if two or more players are wearing them, they must all be the same color.