This Bag is very cute and in style and can confortly contain your lunch and even a 500ml. bottle (lay down). The little nets on the sides and the pocket on the front, allows you to keep some other small items, (spices, phone, keys..), very useful.
I haven't tested it in unusual situations, so I don't know how long it will keep the internal temperature constant.
Anyhow, I love it <3