High density upholsters foam with removable, durable cotton cover (navy blue). For positive support in sitting poses, shoulder stand (2 required) and Pranayama. Will not collapse. A superior form of support to folded blankets. We tried and tested this product before manufacturing and releasing to the market, and we believe it offers better support than blankets for a wide range of poses.

Outer cover zips off for washing by hand and machine washable.