Punch Bag Fill Material Australian-Sourced Rag Fill. Pack It Your Way. Save on Freight. Fill your punch bag on site with premium Australian rag - straight offcuts from 1st-grade clothing cutters in Sydney. Buying an empty bag and filling it yourself saves significantly on the freight cost of shipping a pre-filled bag, and lets you control exactly how firm or soft your bag ends up. Our rag consists of Lycra, cotton and fleece (varying with the season) - clean, dense, impact-ready material sourced from Australian mass-production facilities. How Much Fill Do I Need? Bag Length Rag Required 80cm - 90cm 20kg 100cm - 110cm 30kg 120cm - 140cm (4ft) 40kg 150cm - 160cm (5ft) 50kg 170cm + (6ft) 60kg For example: an Onyx 4ft bag takes 2x 20kg boxes, a 5ft takes 50kg, and a 6ft takes 3x 20kg boxes. Specification Details Material Lycra, cotton & fleece rag offcuts (seasonal mix) Source 1st-grade clothing cutters, Sydney, Australia Pack Sizes 5kg / 10kg / 20kg boxes Suits All empty hanging punch bags and free-standing bags Frequently Asked Questions (FAQs) Q: How do I fill a punch bag properly?A: Pack in layers, compressing each layer down firmly as you go - loose fill settles and leaves the bag saggy at the top. For a heavier bag with a solid base, add a sand or denser mix at the bottom before the rag layers. There are plenty of walkthrough videos on YouTube. Q: Why buy an empty bag plus fill instead of a filled bag?A: Freight - a filled 6ft bag weighs up to 80kg, and shipping that weight is expensive. Empty bag + fill boxes ship far cheaper, and you control the firmness. Q: Is the rag clean?A: Yes - these are unworn factory offcuts straight from clothing production, not recycled garments. Q: Which bags does this suit?A: Any empty hanging or free-standing punch bag - including our full boxing bag range and Onyx premium bags in 4ft, 5ft and 6ft. Shop More: Boxing Bags Complete Your Setup: Floor-Mounted Bag Stand Browse Full Range: Boxing Equipment Fill it your way - Australian rag for a punch bag that hits back right.