Concerning the lunar month as viewed from Earth, the lunar phase or Moon phase is the shape of the Moon's directly sunlit portion, which can be expressed quantitatively using areas or angles. Astronomers have broken down this cycle into four primary Moon phases: New Moon, First Quarter, Full Moon, and Last Quarter. The perfect beanie has arrived! This embroidered beauty has a snug fit that ensures you're going to feel cozy and warm whatever you're doing. • 60% cotton, 40% acrylic • Breathable cotton blend • Form-fitting shape • One size fits most This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!Size guide A B C D One size (inches) 17 ⅜-17 ⅞ 8 ⅛ 2 ½ 8 ¼ A B C D One size (cm) 44-45.5 20.5 6.5 20.8