Using the C.K Magma MA2635 rucksack is easy. Start by packing your tools and documents in the appropriate pockets. Use the vertical storage pockets for quick access to the tools you use often. The lockable zip system can be used when you need to keep your items secure. When carrying the rucksack, adjust the reinforced shoulder straps for a comfortable fit. As for maintenance, clean the rucksack regularly with a damp cloth. Avoid using harsh chemicals as they may damage the 100% waterproof and crackproof polymer base. Store it in a dry place when not in use. If you have any issues, remember it comes with a 1-year manufacturer warranty.