Material: Made of high-quality Oxford cloth + aluminum film, leak-proof and insulated, is a good partner to go out, work, school, camping, etc Design: double-layer design, the upper layer is placed on the fruit snack to keep , the lower layer is placed in the lunch box to keep warm, long-term warmth to the stomach and warmer the heart, adding of warmth to your life Wide application: not only suitable for school, work, dormitory use, but also suitable for travel, camping and other moments, light and convenient size: 23 x 15 x 24cm Material: Oxford cloth + aluminum film colour: Navy blue Package Contents: 1 x Lunch Bag Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.