The Pro XL is enormous. I was surprised how big it was when I received it - you could fit a case of beer and several sandwiches in it. Even without ice it does a great job at keeping its contents cool. The shoulder straps are very comfortable and allow for some air circulation - although without a hip belt the load does sit on your shoulders if you&#x27;re hiking. The breast strap helps. The bungie on the back is great for holding a raincoat or an extra layer.
I found it even better on the water - even threw it in the drink to test its flotation abilities. Yep, it floats! Even filled up with river &quot;supplies&quot;. Since it works a bit like a &quot;dry bag&quot; no river water got in either. The sandwiches were safe!
I would not hike very long distances with this, a better option might be the Boss as it looks like it has a little better support. For my activities this is going to work out well.