Fleece is thin and light, less bulk than others, but performs well. Sheds light to moderate wind - has waist cinch not shown in pic. Has a little more style than standard fleece, with the exception of the colors offered. My large seemed right on for size as listed in the chart except for sleeves which felt shorter than what was listed (which was perfect for me).

I bought primarily to have as a summit sack, hoping it could replace my compression sack and perhaps also do well as a daypack. Two out of three ain't bad and I would add that it seems substantial enough for a summer overnighter bag.

The cons are that its really too big to be effective as a compression sack except for shrinking large bulky sleeping bags to put in large expedition packs and even then its really only capable of minor compression due to the way the straps are setup. Would also be nice if it had a bladder sleeve. As others have said, it really could use a chest strap, but I found this to be a relatively easy fix with a Velcro strap.

The good is that the material is pretty substantial (not sil) and it seems to sit pretty well on my back whether its a small or large load. The shoulder pads are more substantial than I expected and the side pockets are plenty large - enough for a 32oz Nalgene to sit down in it well. The side pockets are what sold me as most day/summit packs are either pocketless or would not roll up to pack in a larger pack as this one does.

Its a bummer having to make room in my pack for it as that is not what I had planned, but it seems to be my best choice given function and value.