Backpacks for large laptops

urban, on a suitcase, 27 L, for laptop, pockets: top, lower, 51x33.5x14 cm, weight 820 g, 17.3 "

urban, for laptop, reflective, pockets: front, lateral, 51x34.5x20 cm, weight 1401 g, 17.3 "

urban, 34 L, for laptop, pockets: front, 52.5x33.5x23.5 cm, weight 700 g, 17.3 "

urban, on a suitcase, 29 L, capacity change, for laptop, pockets: front, lower, 44x32x20 cm, weight 1480 g, 17.3 "