Using this backpack is easy. First, open the main compartments to place your 17 - inch MacBook Pro and iPad in their respective padded areas. Put your iPhone in the quick - access pocket. Adjust the shoulder straps to fit you comfortably. When carrying, make sure the weight is evenly distributed. For maintenance, avoid overloading the bag to prevent damage to the materials. Clean it regularly with a soft, damp cloth. Don't use harsh chemicals as they may damage the polyester and coated panels. Keep it in a dry place when not in use to prevent mold and mildew.