
Well, to start with, I definitely recommend not using the transparent version when it gets really hot! I used it rafting in 75 degree sunny weather and I could see the effect on the backpack, it just seemed like the material was softening. They mention it in the description, but I don't think the mid 70's counted as "hot". It was definitely a good size, I had a small blanket, my iPad, phone, book and a light sweater and I was definitely not stuffed. Dryness; All my stuff stayed dry and no water got in which was a plus, but it wasn't submerged in water so I'm not sure how it would have been if that was the only reason I gave it a 3 Giving stars, not 5, it's because the stitching on the straps seems to have ripped or doesn't seem to hold up, which is disappointing because you really liked the idea and the fact that I could use it as a backpack.

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