A crescent meditation cushion is suitable for people who are (reasonably) easy to sit cross-legged.
The front of the pillow is slightly lower than the back, which gives the pelvis some extra support so that you can easily sit upright for a longer time without getting tired.
The thighs also get some extra support with this cushion, which makes the meditation seat extra comfortable.
This Love Generation half-moon meditation cushion is made of a very sturdy cotton canvas, and is filled with organic buckwheat caps. Buckwheat husks are a residual product of buckwheat; an extremely durable and lightweight material that provides perfect seating support. It has been used for centuries to fill meditation cushions, including in the Zen tradition.
The meditation cushion has a zipper neatly hidden under the carrying strap on the side. This allows you to remove or add filling. This way you can always adjust the cushion to the seat height that suits you best. Are you easy to sit cross-legged? Then make the cushion a little lower. If you are not comfortable sitting cross-legged, try the cushion on its side, in a seiza position, with your knees on both sides forward and your feet flat back.