WATERPROOF DURABLE - The laptop bag is made of lightweight, durable, and waterproof encrypted polyester fabric, wear-resistant, scratch-resistant, and durable. Thick fabric, effectively prevents water splashes, prevents corrosion. Additionally, the laptop bag comes with hardware double-way zipper smooth, durable, and does not fade. 3D BREATHABLE PADDED - Laptop bag with detachable padded shoulder strap and adjustable reinforced straps. it features excellent thick breathable mesh padding, which provides your back with ample cushioned comfort, allowing you to use it daily comfortably and conveniently for personal and business purposes. The belt buckle is convenient and practical as it can be adjusted as needed. MULTI-LAYER POCKETS - Alfheim briefcase bag fits up to 14-16" laptop, compatible with Dell HP, Asus, Lenovo, Toshiba, Acer Aspire, Samsung, Sony, MacBook. Patented double-access zipper design. There are 2 main compartments for laptop storage that can also store iPads/books/documents and so on. 5 small pockets are inside, 2 compartments, 2 pen positions. The front pouch is perfect for storing your IPAD, mobile phone, or other small items. WIDE RANGE OF APPLICATIONS - Alfhiem lightweight shoulder bag is very practical and universal. it is suitable for various crowds (man, woman, or student). Because it is large storage space, you can carry this bag for school, leisure, hiking, camping, trekking, air travel, walking, outdoor sports, shopping, business trips, and overnight stays.