To achieve calm and presence, we need a comfortable place to sit on so we can find our inner peace. This round-shaped pillow is also great help to achieve the ultimate poses for all kinds of yoga such as Hatha, Yin Yoga, Medi Yoga, Yoga Nidra etc. Outer fabric is 100% washed linen and filled with shells of European cultivated buckwheat, height and softness can be adjusted easy, just open and empty/fill it with buckwheat shells until you are satisfied. Hidden zipper.