Description: This bag has solved the problem of insulin and other medical medicines cold storage. With icicle/cold reserving agent this bag can be be frozen for 4-6 hours keeping the temperature of the package within 2-8℃ in 8-19 hours. It has the multi-layer design the outer layer is made of waterproof fabric and the liner adopts thermal insulation aluminium foil to keep the temperature for your insulin. Specification: Condition: 100% Brand New Material: Polyester Product Size: Approx. 20 * 9 * 4cm / 7.9 * 3.5 * 1.6 Package Weight: Approx. 92g Package Included: 1 x Insulin Cool Bag Note: 1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering. 2. Please understand that colors may exist chromatic aberration as the different placement of pictures.