Thule Crossover TCBP-317 25L Backpack for 15-Inch MacBook Pro or PC (Cobalt) Padded， integrated laptop compartment holds up to a 15 inch MacBook Pro 25 liter backpack Great backpack to hold all of your electronics and accessories This 25 liter backpack is designed for gear-heads who need dedicated electronics protection plus pockets and compartments for whatever the day might bring.