These bag holders with a modern, natural look put the finishing touches on improvised bags. Whether shopping bags or a beach bag: This trendy, knitted bag bottom is available in different versions - allowing beginners and advanced users to create their new bag in a very customized way. To do this, the bottom of the bag is simply sewn onto the material of the bag. And, to help, the back of the bottom bag packaging contains step-by-step instructions. Prym brand mat bag bottoms are made from an extremely stable natural material, they are naturally beautiful and give every bag the support it needs.