Water is such an essential part of life, but it is also known as one of the most destructive forces on Earth. With enough time and water, almost anything can be damaged. This is the case for the Grand Canyon, which is also true for personal/business electronics. What we do as individuals to keep our stuff safe from water hazards is necessary to keep our gear correctly functioning.
Many modern smartphones are being constructed with getting wet in mind, whether the phone is caught in the rain or splashed while doing dishes. So much important information is stored on these devices that they need to remain protected. It is difficult to add this technology to laptops and cameras, so extra protection is needed when traveling with this gear, even when not traveling near water.
Custom carrying cases with foam are heavy-duty and are built to resist water. Using these cases is the best way to travel without worrying about safely transporting the gear. Cases can be rained on and submerged (up to a certain depth) without water damage.
Even the smallest amount of water in the wrong spot can completely ruin a hard drive or a camera. There are many critical electrical parts, and water can easily short those circuits. In many instances, damaged computers lose information and are not retrievable. If you need a custom carrying case with foam, you should make sure it is a heavy-duty case that is water resistant.