This Soft-Foam 4" Collar was designed for comfort and used to sooth muscle tension and minor neck injuries. The soft polyurethane foam provides cushion and support that will last through the night. The foam is covered with a a soft and natural knit cotton. The hook'n pile closure makes this a convenient fit for any size. 

Front Closure: Hook'n pile strap.
Inner Padding: Polyurethane.
Outer Cover: Natural cotton.
Height: 4".

For best fit see sizing chart below.