... 2-4cm, 4-6cm, 6-8cm3. Use: As filling materials for quilts, pillows, cushions, mattress toppers.4. Less sharp, residue ... odor and fresh smell.6.Perfect thermal insulation7.As filling material of garments, quilts, pillows, mattresses, cushions and so ... , feather mattress topper ---quilt and pillow envelope for filling . Standard : Europe and USA standard (IDFL) 90%white grey down material for filling