This rucksack features a 100% waterproof and crackproof polymer base. The lockable zip system provides added security for when you are on the move.The contoured shape base adds comfort and the vertical storage pockets make for easy tool access. The extra padding at the back and reinforced shoulder straps means this rucksack is the most comfortable tool storage case on the market. It contains 39 pockets and holders including space in the base for larger tools. The padded front pocket with internal zipped document pocket is ideal for laptops, tablets and any test measure equipment.