For layering this works just fine, I got mine here at Backcountry.com. I can wear this jogging, to the gym, hiking or backpacking then slip on a windproof fleece and feel perfectly toasty. I also wear equivalents, more affordable off brands that work just as well. However, I do like the anti odor lining which is a huge plus after getting it soaked in sweat and having to wear it again the next day. It dries pretty quickly and is decent quality. I'd consider Nike and UnderArmor in this same category for a light weight, quick dry, long sleeves. I'm not disappointed with the TNF one at all, especially at the sale price I got it at which is competitive with other brands that offer the same functionality.I am 5'7", 40chest/31waist (both fluctuate) and the small fits me perfectly and not loosely.

I got my pair in from Backcountry.com and was concerned with all the negative reviews. but the pants seem just fine to me after a wear around today outdoors. I am a 31/30 and the medium/short fits perfectly. The inseam is just like any other 30 length inseam I've had to deal with on jeans and pants. What can I say, I'm 5'7". I was afraid they would be too long as many have complained but they are fine for my shorter legs with hiking boots on.I checked out the seams to see what people wer complaining about and found them to be fine quality, especially compared to cheaper, dirtier same types of pants. These are great for hiking, backpacking but they don't seem durable enough for sliding on rocks and glisading down a hill or mountain. I think the material could take it but the seams in the seat could strain and wear. I like the snaplock belt buckle, the zippers are fine. The pair I got were also made in Bangladesh but again happy with TNF overall quality.The material is great! Thicker material compared to others convertible pants made for fishing and wet conditions. Wish I could find a couple more my size at the discontinued sale price I got mine for! I thought about wearing thermals and negative fleece underneath and it would be a tight fit unless the fleece is super thin.

I was loyal to the Patagonia equivalent of the TNF Windfall Vest for the last 5 years. I still wear it to this day. It's great quality, always looked new even after many washes etc.. but after a few years I figure it's time to get a new one, even though it still wears perfectly... so I got the TNF Windfall on sale here and I love it just as much.It's just as good if not better. It's an all occasion, all weather essentially windproof thin fleece vest. I wear it out with shorts, jeans, backpacking, it keeps me warm when worn over a wicker shirt, etc. I wear it hiking, backpacking, lounging, going to the store, etc...I got the mens small and it fits me perfectly (5'7", 154lbs, 40chest/31waist). Everyone needs one of these, they are just that all purpose useful. I'm not trying to sell anyone on it or a particular brand. I literally live in this as the post below states and stand by these windfall/windproof fleece type vests as really all purpose technical gear that looks great just wearing with jeans into the city too.

This is not winter gear but it is decent 3-season gear.

Pros: I used to wear REI fleece (affordable ones) with a Sierra Designs windbreaker/rain shell over it when gets windy or wet. I got the mens TNF Denali KCS version on sale and it is warmer, better quality and lighter than my REI one which has seen 26 miles backpacking in Bryce Canyon (froze at night, 50s during the day). A thick wicker shirt, the Denali fleece and a soft water proof compressible rain shell fits in my pack just fine and was a perfect decent combination for 3-seasons backpacking (I wouldn't consider it for winter treks though). Small, fits me perfectly. (5'7", 155lbs, 40chest/31waist). Also it wears well with a good pair of jeans in the city, which is a plus, not a minus for me.

CONS: There is more technical fleece, form fitting, more wind resistant and such. This fleece is not wind resistant at all! Get the TNF Windfall if you're looking for wind resistance. It's more a technical fleece, it's basically wind proof. The Windfall Vest is great too, I wear it everywhere.

Conclusion, this is a great non-wind proof fleece, if you want windproof... get the TNF Windfall which is essentially wind proof