The 8 hour insulated vaccine bag is suitable for the transport of vaccines & medicals. Ideal for use by nurses and medical staff. Insulated 8 hour Vaccine Bag and 4 cool packs Polar Thermals 8 hour vaccine carrier is an insulated vaccine system, the system will maintain a product temperature of between 2°C and 8°C for up to 8 hours when in use. All materials are waterproof, have rot proof stitching, are antifungal and come with a two year guarantee, subject to normal wear and tear. The Vaccine System comes complete with coolants and the option to have an added shoulder strap (see related items). SHOULDER STRAP IS SOLD SEPERATELY