This is the first Frost River backpack that I have purchased. I was looking for “the one” after trying so many packs, rucksacks and haversacks that were either too heavy, too uncomfortable, or I just didn’t like them. But this Frost River Summit Pack is the Absolute Best Pack I have Ever Owned. It is extremely well made and durable. I love it’s comfort and the way it molds to my back as I carry it. The padded straps add that extra touch of support. Even full, it is perfectly comfortable. Not too heavy, and the size is just right. I love this one so much that I went back and purchased Another one! I just ordered the Geologist pack! Because I have a lot of experience with different packs, I can confidently say that I won’t carry any other kind of pack again. I am 100% satisfied in all ways, and highly recommend Frost River!!