Brands love to label their products as tactical nowadays. A quick Amazon search for the word turns up all manner of products ...

Military Tactical backpack size approx.:13"*20"*11" / 33*50.5*28CM (W*H*D),Capacity: 40L; Military backpack is made of high density fabric--durable and water-resistant Molle tactical backpack has ...

Available in various sizes and styles, these packs all have one big thing in common: they're tougher than you probably need.