When choosing your knitting bag, always keep in mind the type of work you will be undertaking. If you decide to make sweaters, such as Afghans, then you will need a much larger one than if you were to decide to make socks, or other small items. When choosing a bag you should always keep in mind, that your bag will be used for carrying your knitting material from place to place, so the stronger the bag you decide on, the more objects you can carry.
If you wish it to serve a dual purpose, such as a knitting bag that also serves the purpose of a purse, then look for knitting bags which come in leather, or suede. There is a large variety available in to days market. Some of them are intricately designed, while the others are simple but smart looking. So you can choose a knitting bag that satisfies your mood or is a treat for an eye.

When choosing your knitting bag, you should always keep a track of the latest fashion and what will be your requirements. While shopping for one, it is always better to purchase a bag which has hard sides as it is easy to carry and more durable.