This is a light weight standard length skull cap designed to cover just the top of the ears or be worn tucked behind the ears.  The white is a blend of cotton and tencel.  The tencel gives the cotton a brighter look with a slight sheen.  Tencel is made from wood or bamboo as is rayon, so they have a similar look.  The tan is natural color linen.  The beige is colorganic cotton (it grows that color naturally, so is not dyed).  The dark gray edge and accent stripe near the middle are both dyed cotton.  The dark gray around the top is linen.  The green next to it is cotton, and the center circle at the very top is a blend of beige colorganic cotton and plain undyed white cotton.