Comfort mostly depends on the load that you are carrying. Whatever the features are, if you are going to carry a real weight which is tough for your strength, it will never be comfortable. Besides, that see the things below can add more comfort to a backpack:
- A good ventilation system will keep your back cool and dry.
- Air mesh padded back panel will help you to carry comfortably.
- Adjustable sternum straps help you to keep the bag fit with your body.
- The waist belt helps to carry the load by your hips which means your upper body can stay relax.
- Find a frame which can distribute the weight so evenly.
- Look is there any anti-gravity framework.
- See, is there any strong lifter on the backpack. Just in-case
Comfortable? Yes, if ensures the above things, it has to be. One more thing – lightweight backpacks usually don’t follow so many things though they don’t need to but if you are taking heavyweight backpack than making sure all the facts given above.
