According to Yeats, the solitary fairies, like the leprechaun, wear red jackets, whereas the "trooping fairies" wear green. The leprechaun's jacket has seven rows of buttons with seven buttons to each row. On the western coast, he writes, the red jacket is covered by a frieze one, and in Ulster the creature wears a cocked hat, and when he is up to anything unusually mischievous, he leaps onto a wall and spins, balancing himself on the point of the hat with his heels in the air."