WATERPROOF - The laptop bag is made of lightweight, durable, and waterproof encrypted polyester fabric, wear-resistant, scratch-resistant, and long-lasting. Thick fabric, effectively prevents water splashes, prevents corrosion. In addition, the laptop bag comes with two-way material of soft pulling, durable and does not fade. 3D BREATHABLE PADDING - laptop bag with padded shoulder strap removable and adjustable reinforced shoulder straps. it has excellent thick breathable mesh padding, provides your back with plenty of cushioned comfort, allowing you to use it every day quickly and comfortably for personal and professional use. The belt loop is convenient and practical as it can be adjusted as needed. MULTI-LAYER POCKETS - The Alfheim case accommodates laptops up to 14-16 inches, compatible with Dell HP, Asus, Lenovo, Toshiba, Acer Aspire, Samsung, Sony, MacBook. Patented dual-access zipper design. There are 2 main compartments for storing laptops that can also store iPads/books/documents and so on. 5 small pockets are inside, 2 compartments, 2 pen slots. The front pocket is perfect for storing your IPAD, mobile phone, or other small items. WIDE RANGE OF APPLICATIONS - The Alfhiem lightweight shoulder bag is very practical and universal. it is suitable for various crowds (men, women, or students). Because it is a large storage space, you can carry this bag for school, leisure, hiking, camping, trekking, air travel, walking, outdoor sports, hiking. shopping, business trips, and overnight stays.