This is a single-layer, unlined bag. When folded, it measures 45cm in height, 37cm in width, and has a handle length of 42cm. These measurements may vary slightly. It's shaped like a plastic shopping bag, so it expands to create a gusset when you put things in it, allowing you to carry a good amount. It may be expensive for an eco-bag, but customers have been happy using it for many years (*^^*) There's a string inside so you can tie it closed. This is handmade by an amateur, so please understand that there may be thread joins and uneven stitching. Also, the cotton-linen canvas material has neps (small knots). Sometimes the neps may not have color on them. This is especially noticeable with the Echino fabric. While designed as an eco-bag, it can also be used as an everyday bag.