Silicone is the best. It's flexible, easy to use, easy to clean, and extremely versatile. Turn all of these qualities into a piping bag, and you have a winner.
This silicone piping bag from Kitchen Craft can be used with or without nozzles to easily ice cakes and cookies. Simply fill, snip the end to fit your nozzle or need, and you're away. Then wash, dry and reuse. In two sizes, you'll wonder how you managed without. Never worry about staining your pastry bags with colourful icing. Just pipe and go.
Size: 33cm and 46cm