Khadis Square Folded Cards & Envelopes are designed to perfectly complement their rag papers, so that card-makers can use the same gorgeous papers that are so popular among watercolourists & illustrators. Khadi make their Rag Paper ethically, largely in Nepal & Bhutan, from recycled offcuts of cotton T-shirts & jute sacks. These Rag Envelopes are 210gsm, with a medium-rough texture. Theyre acid-free, internally sized with p H-neutral size & surface sized with gelatine. Theyre suitable for embellishing with all types of painting & drawing, but especially watercolours.