Size:backpack:16.5x5.5x12.6 in;lunch bag:10.4x4.5x8 in;pen bag:4x2x8.3 in;Material:Polyester Backpack 【Product Performance】 The product is made of high-density PU plain weave fabric which is sturdy and wear-resistant. The overall design of the backpack is fashionable and lightweight. The adjustable shoulder straps can be adjusted to your desired length at will. The widened breathable shoulder straps can relieve the pressure on your back and protect your shoulders. There is a fabric strap on one side for hanging glasses. The comfortable airflow design on the back is thick and soft. The large capacity design has a separate computer compartment inside the main bag which can accommodate a 15-inch laptop and iPad, as well as books, clothes and other daily necessities. It can help you organize and store items conveniently during work, study or travel. Casual and simple. The backpack is made of high-density pu plain cloth strong and wear-resistant, the whole bag design is fashionable and light, the adjustable shoulder strap can be adjusted to your comfortable length, the widened breathable shoulder strap design can relieve the back pressure and protect the shoulder, one shoulder strap is equipped with a webbing for hanging glasses. Comfortable airflow back design, thick and soft. Large capacity design, the self-contained computer compartment inside the main bag can accommodate a 15-inch laptop and iPad, as well as books, clothes and other everyday items. The lunch bag is made of Oxford cloth, which is strong and durable. The inner cloth is insulated aluminum film with cotton sandwiched in the middle. Comfortable hand-held design, elastic on one side of the interior to place cutlery, etc. The interior lining is EVA and PE cotton, easy to clean in case of inevitable spills. Lightweight, reusable, smooth double zipper opening and closing, soft top handle, adjustable shoulder strap, insulation for fresher food, including dedicated compartments for storing small bottles and cutlery. The pen case is strong and wear-resistant. The zipper moves smoothly and can store your writing instruments, art supplies, and other daily necessities. Lunch Bag 【Product Performance】 This handbag is made of Oxford fabric surface cloth, which is sturdy and durable. The lining fabric is insulation aluminum film, and there is a layer of cotton in the middle for insulation and heat preservation. It has a comfortable carrying design. On one side of the interior, there is a drawstring for placing utensils and other items. The interior lining is made of EVA and PE cotton, which is easy to clean in case of inevitable spillage. It is lightweight, reusable, and has smooth double zippers for opening and closing, soft top handles, adjustable shoulder straps, and insulation to keep food fresher. It includes a dedicated compartment for storing small bottles and utensils. Pan Bag【Product Performance】The pen bag is sturdy and durable, with a smooth and firm body. The zipper moves smoothly and can store your writing tools, art supplies, and other daily necessities. It is a great gift to give to friends and relatives.