Back: 100% cotton If you'd like to combine shipping, please leave a comment. I will create a combined listing just for you. Because I am selling these at a low price, I cannot change the patterns. Dimensions: 13 cm vertically when folded in half, approximately 20 cm wide when unfolded. Please hand wash and reshape before drying. These are handmade, so there may be slight irregularities in shape, stitching, and loose threads, but I have carefully finished each one. Thank you for your understanding.