Abstract: This invention relates to a backpack having enclosed compartments suitable for storing and transporting articles requiring thermally insulated and waterproof protection. The backpack is comprised of two-sections, one of which is a thermally insulated compartment for carrying articles that need to be kept cold or warm. The structure of the apparatus is flexible and formed from a combination of composite material sandwiched between an inner and an outer flexible material. Shoulder or carrying straps and a waist strap are integrally connected to the housing so as to adapt to the wearers shoulders and waist.