These element-proof bags are perfect for keeping maps safe and dry in extreme conditionsIdeal for cameras, mp3 players, passports, tickets, money, keys and MapsIPX8 rated - Waterproof to 10 meters,Constructed from durable triple polymer film,Highly reusable,Airtight press-to-lock seal,Touchscreen compatible - ideal for phones/tablets,This item is on the DofE Recommended Kit list,Each pack contains 3 sizes,Sizes included:,Small: 152 x 279 mm,Medium: 305 x 305 mm,Large: 229 x 349 mm.