Cosmus sedna 15.6 inch laptop backpack is made of High grade water resistance PU coated polyester material that gives it strength and makes it durable for long-term use. It features a zippered well padded Laptop compartment that fits upto 15.6 inch laptop,one large compartment is big enough to hold your office or daily use belongings, it also has two front zippered pockets. Cosmus Sedna backpack features two mesh side pockets, where you can keep your water bottle or any other item for an quick access. Waterproof Laptop Backpack Bag Material: Polyester Compartments & Pockets: One main top loaded compartment, One large front Pocket, Two side mesh pockets Compatible laptop Size: Upto 15.6 inches