FILL-20 Punchbag Filler 20kg Sack Finely shredded cotton fibres that compress well to provide an even fill consistency. Cotton filling provides a great realistic feel (unlike sand) whilst also maintaining a good overall weight. Perfect for filling an un-filled punch bag. Ideal for using to top up existing bags where the filler has sunk down leaving the top empty. Sold in 20 kg sacks. May vary in appearance from picture. Features: Finely shredded cotton fibres Compresses evenly Provides realistic feel Ideal for topping up existing bags