There is a big difference between storing seventy liters of supplies and carrying them down a road. The 70L Large Tactical Backpack Military Rucksack with Internal Frame should be chosen with the second situation clearly in mind.

Decide What Needs That Much Room

The title identifies a 70L internal-frame rucksack. I would begin with the bulkiest equipment, such as bedding or weather layers, and work out whether that volume is actually necessary.

Listed capacity: 70 liters.
Format: Tactical rucksack.
Support description: Internal frame.

Fit Is More Than Strap Padding

The frame and harness need to suit the person's dimensions. I would want a clear torso adjustment range, waistbelt information, and the pack's own empty weight before deciding how it fits a walking plan.

The listing title does not identify a particular frame material or load rating, so I would not invent either. Those specifications matter more to the purchase than a broad military-style description.

Make the Load Easy to Manage

Putting everything into one big backpack can simplify storage while making the whole collection difficult to move. I would separate equipment that must be carried from supplies better left in a vehicle or home container.

Loading order also matters. Items needed during the day should not require unpacking all the bulky overnight equipment. A consistent arrangement is more helpful than trying to remember a new layout every time the bag is repacked.

When This Size Is Reasonable

I would compare this rucksack for someone with a defined large load and an opportunity to check the fit realistically. If the intended contents fit a smaller pack, moving down in size may produce a more manageable setup. Capacity should support your plan, rather than decide how much equipment you buy.