
Now back to the layers... The more layers you have on, the warmer you get... obv. So lets start with the first layer, It is a mesh jacket, SUPER breathable, and keeps the sun off my skin while holding the armor in its place.
Second layer is breathable (like a sweat-shirt) that can be added in when it gets around 75-80 deg.
The third layer is pretty much impermeable and holds all body heat in and keeps all cool air out for those cold (70 and under) riding times. It also has a zipper on the third layer to help trap the air in. If only you could tuck in into your pants, you'd be all set. All the layers have spots and slots to strap into eachother so the jacket doesnt get tangled up when you put it on or take it off.
Also a bonus is the labels are easy to cut off. If you don't like being labeled with brand names that much or there is simply WAY too much, you can get a knife and cut the thread that is holding them on. I took off 3 labels while sitting on the pot w/o damaging the jacket or its ability to function properly. Reason I mention this is because sometimes taking the stitching out of something to remove the brand name can sometimes ruin the product.