What are the blankets made of?

For the blankets with covers, the inner blanket has an outer shell of 100% hypoallergenic, breathable cotton with a thread count of 233. This higher thread count is to ensure the fabric density required to hold in the 1mm glass beads throughout use and washing. The higher thread count is also useful to use the blanket without a cover to provide additional softness. 

Underneath the outer cotton shell are 1mm natural, hypoallergenic, glass beads sewn into small square pockets for even weight distribution. They are not sharp and do not cause any damage to the blanket. With the glass beads is polyester fabric filling to prevent the beads from moving around within their section.