Using this backpack is a breeze. First, you can put your laptop in the dedicated laptop section. Make sure it fits snugly to avoid any damage during movement. For your sunglasses, place them in the fleece - lined pocket to protect the lenses. Put your snacks and drinks in the external insulated cooler pocket. The large main section is where you can store other belongings like books, clothes, or sports gear. When it comes to maintenance, spot - clean the backpack with a mild detergent and a soft cloth if it gets dirty. Don't machine - wash it as it may damage the insulation and the fabric. Also, avoid over - stuffing the backpack to prevent it from losing its shape. And always keep it in a dry place when not in use to prevent mold growth.
