100% pure USA natural high grade cotton. Extremely soft & drapeable. Specially needlepunched for strength. No scrim to resist your needle. Environmentally friendly - No chemical resins or binders. Stitches up to 8" apart. No prewashing necessary. Only 1% shrinkage in a cold wash, air dried. 3% shrinkage in a warm wash, warm dry. Remember, your prewashing and selection of fabrics and thread will also effect shrinkage.