Dell EcoLoop Pro Slim Backpack 15 | Staples。The Dell Eco Loop Essential 15\" laptop backpack is a durable and stylish choice for outdoor activities. Made of polyester material in a sleek blue color, this medium-sized backpack has a capacity of 15 liters and features 5 pockets for convenient storage. With a Seamlock closure, this backpack is perfect for hiking and camping trips, offering ample space for essentials while on the go. The insect repellent treated design ensures added protection during outdoor adventures. Ideal for both men and women, this backpack combines functionality with a modern design for a practical and stylish option for eco-conscious travelers.