This Cool Clutch bag has an insulated interior and waterproof aluminum foil lining that will keeps its contents cooler or warmer for up to 8 hours depending on the ambient temperature. Perfect for lunch and drink bottle for work, wine and nibbles for a picnic or dinner at friends, keeping baby?s milk bottle warm, wet umbrellas, the list goes on. Exterior zip pocket 12 x 9cm deep. Detachable and adjustable shoulder strap. Interior is 100% waterproof aluminum foil with 10mm insulation. Exterior is vegan leather. Measures: 36 x 8 x 20cm (Fits two bottles of wine)