Hard wearing waterproof EVA cool bags High density insulation in walls Waterproof double zip compresses the lid and walls together creating an airtight seal 1mm walls with a 1.5mm heavy duty base for strength Moulded scuff pads on base Unique Fox Camo pattern design High quality 10mm zips Dedicated moulded over-lapping lids in Khaki Hard wearing polyester carry straps Ergonomic zip pullers 15l Capacity: External dims 38cm x 25cm x 29.5cm Internal dims 34cm x 20cm x 20cm 20l Capacity: External dims 44.5cm x 29.5cm x 29.5cm Internal dims 39cm x 25cm x 20cm 30l Capacity: External dims 50cm x 37cm x 29.5cm Internal dims 45cm x 32cm x 20cm