For professional and leisure applications, tactical backpacks provide a carefully structured layout that allows for comfortable carrying and equipment safety even when carrying heavy loads.

This 27 liter backpack from Mystery Ranch is one of the most widely used tactical backpacks on the market in 2021. Due to its lightweight appearance and compact size, the 2-day assault backpack ($200) is the perfect choice for weekend camping and you don't want to drag a full size backpack.
Firstly, thanks to the detachable shoulder straps and straps, it is both comfortable and safe on your back. Secondly, it only weighs 3 pounds, so hiking won't make you feel heavy.
For professional and urban use, the all-in-one padded laptop case and sturdy YKK zipper add impressive versatility. For water storage, the 2-day assault pack is compatible with water bags. Each package also includes a double water bottle holder.
We like this bag made of sturdy material. Its high-quality 500 denier Cordura fabric has undergone on-site testing and is durable.

Capacity: 27 liters
Advantages: Durable materials; Highly versatile, suitable for overnight exploration or daily use; Easy to use three zipper opening; light
Disadvantage: Incomplete waterproofing

Compared to other options in this list, REEBOW Gear's sturdy backpack ($39) has a larger capacity. For those looking for a backpack for a three-day night trip and outdoor adventure, this backpack is a carefully crafted and cost-effective choice.
The wear-resistant outer layer material can withstand various factors well, and the sturdy zipper of the backpack is durable. In addition, the low-key waistband and integrated sternum strap ensure the safety of the backpack even when carrying heavy loads.

Capacity: 40 liters
Advantages: Economical and affordable; Good capacity for two or three night travel; Durable material for heavy-duty hip and sternum straps
Disadvantage: The belt is not large enough for some users

In 2021, many high-quality tactical backpacks are affordable, and the SOG Ninja tactical backpack  is a good example. The combination of an easily adjustable shoulder strap and a soft padded waistband with a hard suspension provides maximum comfort.
For daily use as a professional or school backpack, the integrated padded laptop case can be accessed through the long side zipper. In the main compartment, several internal zippered compartments with small sleeves can store all your equipment in designated locations.
Water bottles, sunglasses, or electronic devices can easily be placed in the side pockets of the backpack. Two independent water bag hose ports provide multiple options for various configurations. From daily commuting to weekend hiking, SOG Ninja is adjustable, durable, and affordable.

Capacity: 24.2 liters
Advantages: Economical and affordable; Waterproof; Integrated laptop case; Multiple hydration hose ports; Breathable mesh helps prevent sweating
Disadvantage: No belt

The RUSH 100 is designed specifically for military deployment . It is a multifunctional heavy-duty bag with ample capacity, suitable for items that require a large amount of equipment.
This backpack is compatible with any size water bag and can thrive in harsh environments where water is scarce and must be carried on the back. It is also beneficial for a burly environment, as the 500 denier outer layer material can withstand repeated abuse and wear well.
The capacity is 60 liters, which is one of the larger packaging in this list. Due to the internal zipper management compartment, large internal storage space is easy to organize. In addition, customized aluminum and fiberglass internal frames support heavy loads by transferring the load to a padded waistband.
The 270 degree zipper allows the main compartment to fully open, making it easy to pack and unpack. On the outside of the package, the MOLLE configuration stitched webbing allows for modular customization and unlimited options for additional external storage.
The price is $250, and this bag is more expensive than the other bags on this list, but it also offers additional capacity and is well crafted. For those looking for bags that can pack overnight camping trips or store large amounts of heavy equipment, the 5.11 RUSH 100 is a sturdy and reliable choice.

Capacity: 60 liters
Advantages: Multiple pockets for easy organization; Multiple options for modular customization of heavy-duty fabrics and zippers for storage systems; The adjustable torso strap includes a quick release device and a load lift device; The main compartment is fully open for easy loading and unloading
Disadvantage: Not very waterproof, not the most comfortable belt