WATERPROOF DURABLE - laptop briefcase bag was made of lightweight, durable and waterproof encrypted polyester fabric, wear resistance, scratch resistance and lasting durability. Thick fabric, effectively prevent water splashing, prevent corrosion. Besides, laptop shoulder bag come with hardware double-direction pull smoothly, durable and non-fade. 3D BREATHABLE PADDED - laptop shoulder bag with detachable padded shoulder strap and adjustable reinforced straps. it have excellent thick breathable mesh padding, offering your back plenty of cushioned comfort, which enables you to use it everyday expediently and comfortably for personal and business purpose.The belt buckle is convenient and practical because it can be adjustable by the demand. MULTI-LAYER POCKETS - Alfheim briefcase bag fits up to 14-16" laptop, compatible for Dell HP, Asus, Lenovo, Toshiba, Acer Aspire, Samsung, Sony, MacBook. Patented dual-access zipper design. There are 2 main compartment for storing laptop which can also store ipad/books/documents and so on. 5 little pockets are inside, 2 compartments, 2 pens position. The front pouch is perfect to store your IPADmobile phone or small other thing. WIDE APPLICATION - Alfhiem light shoulder bag is very practical and universal. it's suitable for different crowd(male, female, or student). As it's large storage space, you can carrying this bag for school, leisure, hiking, camping, trekking, air travelling, walking, outdoors sports, shopping, business trip,and overnight stay.