Tilda Basics Chambray Fabrics Fat Quarter Bundle. Includes 15 fabrics. A collection of beautiful Chambray fabrics with a lovely quilt quality. Woven with a colored weft and white warp, the Chambray collection has a soft, rustic look that will work wonders for any quilt. Tilda Basic. Chambrays are yarn-dyed woven fabrics, we recommend washing dark chambray colors before combining with light colors in a patchwork. Fabric is OEKO-TEX® class II certified.