 Starting in 1995 (excluding a few prior isolated instances), some teams began to design a third sweater, or alternate sweater, which allowed them to experiment with new designs, or throwback to a vintage design.Though they are termed third sweaters, they can actually entail an entirely separate look from the primary equipment, often including alternate socks, and sometimes alternate helmets and other equipment.Some third sweaters have eventually become the bases for new primary sweater designs.