This style is most famous with youth as it looks like a college bag. Moreover, it has plenty space for carrying textbooks and stationery with water bottle. Laptop Rucksacks are made as per the size of the notebook screen. Therefore, you have separate laptop rucksacks for a 15.4" and a 17" notebook. There is plenty of major brands to manufactured rucksack brands include Samsonite, Targus and Crumpler which make the best quality rucksacks.