The Halo Hats has a two inseam placement design with pockets located on the left and the right side of the head. These inseam pockets can be seen on the hat indicated by pinches in the photo. Sound attenuating gel inserts (located to the left and right of the hat) are placed into the inseam pockets. One insert is placed into each pocket. The hat can be easily placed over the head of a premature baby to block harmful, loud noises. The elastic fabric of the hat allows it to be worn by neonates aged from 22 to 37 weeks.