Cork Yoga Blocks Set Review Yoga Gear Yoga Block Rest & Digest Cork Yoga Blocks Rest and Digest Cork Yoga Block, Eco Friendly. isolated on a white background Stock Large Cork Yoga Block Natural Cork Wood Eco Friendly Etsy. Our solid cork yoga blocks provide unparalleled stability and support, allowing you to flow into poses with more confidence. Rounded edges for comfort in gripping and when used as back support. Body kind with no chemicals, latex or PVCs. Naturally antimicrobial and built to last a lifetime using the highest grade of cork on the market.