Best Internal Frame Backpack Under $100

If you are serious about hiking and outdoor adventuring thing, then you will undoubtedly come across terms such as internal frame backpacks. Your backpack happens to be one of the most important pieces of gear you will purchase in your quest to enjoy the great outdoors. Deciding to go with an external frame or an internal frame backpack will depend on several factors.

Today, however, we are going to solely focus on internal frame backpacks. We are going to look at their advantages, examine some of their disadvantages and give you three of the best internal frame backpacks under $100 for your choosing.

Why Should You Consider Buying an Internal Frame Backpack?

Before you even go into the best internal frame backpacks on the market today, it is best to first find out why buying one of these bags could just be the best purchases you ever make as far as your hiking and backpacking experiences are concerned.

Advantages of Internal Frame Backpacks:

  • They are very stable and excellent for hiking on uneven trails
  • They seal up well thus making them highly protective of their contents. The insides don’t easily get wet
  • Almost nothing needs to hang on the outside of the bag as everything can fit inside if pack correctly
  • They are very comfortable
  • They are very adjustable

Internal frame backpacks hug the small of your back in a snug manner making them some of the most comfortable and stable backpacks in the market today.

Disadvantages of Internal Frame Backpacks:

  • They are rather difficult to pack as you need to fit everything inside the bag
  • They tend to be slightly more expensive than external frame backpacks

Now that you know several reasons why you should consider buying an internal frame backpack, let’s take a look at three of the best options under $100.

3 of the Best Internal Frame Backpacks under $100

AmazonBasics Internal Frame Hiking Backpack with Rainfly55L
Mountaintop 70L+10L Internal Frame Backpack with Rain Cover70L
Mountaintop 40 Liter Hiking Backpack with Rain Cover40L

AmazonBasics Internal Frame Hiking Backpack with Rainfly

amazonbasics internal frame hiking backpack image

Amazon isn’t exactly a household name brand because of its backpack making prowess. That, however, doesn’t mean that they don’t make some excellent backpacks. The AmazonBasics Internal Frame Hiking Backpack with Rainfly is one great example. This backpack offers you excellent value for money in terms of capacity, durability, and aesthetics.

With a capacity of 55L in volume, you can pack a lot of gear and essentials into this bag. That isn’t all. If you find that the 55L isn’t enough space for you, then you will be glad to know that the bag offers you a 5L extension collar for more gear.

The backpack is made out of strong polyester material and has a water-repellent coating that makes it not only durable but also very stable and strong enough to take on the wild outdoors. In addition to all that, it has a water-resistant rainfly that ensures all of your gear stays dry should it rain.

The bag also has lots of additional pockets including a compartment for your sleeping bag should you decide to use it to go camping. Apart from the very well designed and constructed straps, it has a cell foam on the lower back part as well as a lumbar pad that gives you excellent support and airflow.


  • It is very affordable
  • It comes with a waterproof tarp
  • It is excellently designed and made


  • You will find that the shoulder straps tend to slack a little bit when you are carrying heavy gear inside the bag

Mountaintop 70L+10L Internal Frame Backpack

mountaintop internal frame backpack image

The very first thing you will notice about the Mountaintop 70L+10L Internal Frame Backpack is that it is rather tall. Of course, it would have to be, what with a 70L capacity including an additional 10L emergency space should you need it, this bag is built to be huge. That, however, doesn’t mean that it is cumbersome or uncomfortable when being carried out in the wild. Surprisingly enough, even with its tall build, this bag is very comfortable and feels very stable when strapped to your back.

Additionally, the bag offers you easy access to all the compartments (there are quite a few). All you have to do is either flip it out to operate any one of the sturdy zippers to access the various compartments. Furthermore, it comes with a hook carabiner that gives you the allowance to attach all manner of gear to the bag including trekking poles, ax, tripods and any other additional piece of gear you may deem necessary for your travels.

With eight different compression straps, you can carry your sleeping bag, hammock, tent and still have a very snug and stable bag strapped to your back. All that and it has an allowance for a hydration system too.


  • It is extremely spacious
  • It is very light in weight
  • It is very comfortable to carry even on long hikes
  • It has a hydration pack


  • It might be too big for day hikers

Mountaintop 40 Liter Hiking Backpack with Rain Cover

mountaintop 40 liter hiking backpack image

If you are thinking the tall Mountaintop 70L is too much for you, then maybe you should consider buying the Mountaintop 40 Liter Hiking Backpack with Rain Cover. Made by the same company with the same quality standards, the main difference between these two bags is simply the size.

This bag was designed for hikers who are not willing to go over the top with their gear but still want something small-sized yet extremely functional. It isn’t as tall as the 70L version, but it offers you a host of features that are just perfect for day hikers and even urban use.

One such feature is a compartment for your laptop. That is not something that you will find in many internal frame backpacks. That compartment can also double as space for your hydration bladder just in case you are not so wild about carrying your laptop into the wilderness.

The bag has six adjustable straps that can help hold a host of gear in place including your sleeping bag, tripod, and hammock. Those straps also hold the back firmly in place as you hike.


  • It’s small yet compact thus making it very efficient
  • It has a laptop compartment that can be used to hold your hydration bladder


  • It might be too small for avid hikers

These are some of the best and most reliable internal frame backpacks for camping or hiking on the market today. Whether you are looking for something big or just something small and compact enough for your day hikes, you have the best options on this list.

We will be happy to hear your thoughts

      Leave a Reply