Reusable Bags - NZ Birds and Flowers by DQThese handy eco friendly bags are strong and sturdy and can easily be tucked back inside itself when not in use. These bags are made of 100% polyester. They are strong and long lasting and make an eco friendly alternative to single use plastic bags. They measure 49 x 58cm (including handles). And they can be hand washed in cold water if needed. They come in many bright and fun designs inspired by the New Zealand landscape.