Here are my latest slipcovers for a customer in a Las Colinas loft. She had a pair of these over sized chairs with ottomans to match. Fabric is "Lydia" 10 oz hemp canvas, prewashed. A free cutting of the canvas can be ordered with a comment to this post.
Green and Safe Windows offers 22 samples of hemp, organic cotton, silk and linen fabrics for $12 refundable on your first order. Prices are most reasonable.