I bought this bag to replace my old Stratos 34. I changed to the Manta because unlike the current line up of Stratos packs, it has black shoulder straps. Note to Osprey: Light grey/white lining on shoulder straps and back panel turn yellow or brown over time from sweat/sunscreen/dirt and it's very difficult to clean. The Manta 28 seemed fantastic at first, but I ended up returning it because the pack was squeaking very loudly as I walked with it. Since then, I have met many people hiking with Manta packs and asked them about the noise. While some people do not care about it and some packs are not as loud as mine was, it turns out they all squeak! Osprey has always been my go to brand for backpacks, but now I'm hesitant to buy again.