Choosing a pack is a personal decision. There seem to be millions to choose from and until you try one out, you really won't know what you like and what you don't like. The packs listed below are ones that I know to be well built and functional for their intended purpose.
Finding the perfect back is like finding a Unicorn. As your skills grow and needs change, so will your desire in what you want for a backpack.
The packs listed on this page are meant to be a suggestion if you're looking for somewhere to start and I believe they'll enhance your experience rather than detract from it.
***When choosing the volume or size of pack, don't go crazy. For most backpacking trips, you likely don't need anything over 50L. Remember, the more space you have to pack things, the more things you'll pack! Backpacking is about being minimal and enjoying going without. The lighter the pack, the more enjoyable those miles will feel.
So you're wanting to go all in on ultralight? Good for you! It's important to know that when you go ultralight, you'll be giving up some features and enhancements that come on standard backpacks. But here's the rub, you'll find that you won't really miss those things you thought you needed in a more "featured" pack.
The more efficient you become with your gear, the less you need, and the less "features" you'll require on a backpack.
If you're getting into backpack hunting and intend on hauling out animal quarters on your back along with the rest of your gear, you're going to want to have a pack that can handle that stress while not making your life miserable (or at least making you life less miserable..haha!).
I've listed Exo Mountain Gear on this page. It is a direct to consumer brand out of Idaho focused on creating packs that are everything you need and nothing you don't. They're built for comfort and efficiency while in the backcountry.
The frame of the these packs can handle huge loads so you can be sure that a load of 40 lbs feels like a dream.