This is a soft cooler bag Jr. that was released in limited quantities the other day. I am selling it because it is too big for me. Size: L14 Body: Approximately H29cm x W27cm x D34cm Material: Body fabric: 840D (denier) nylon Back TPU coating Insulation material: NBR (nitrile rubber) *What is NBR? It has excellent insulation performance and durability, and is widely used in construction, the automotive industry, home appliances, etc. It maintains flexibility even in low-temperature environments, so it is also used as an insulation material for cold storage and refrigerators.