You can save up to 7kg by using dyneema netting as opposed to vinyl coated fablock type of netting. You can also save a lot of money because it is very easy to finish the edges without sewing. I finished the edges of my nets and fitted them for a cost of around $100 ea. I got a really good deal on the dyneema netting from ebay. For anyone looking at replacing their nets it could be worth a check of ebay first. Look for Golf practice nets. Mine are dyneema SK75.