Received the Raiden pants/jacket today. Excellent build quality. It's definitely WARM with the liner in. At 7 pounds for the jacket and 6 pounds for the pants, it's pretty bulky stuff. Plan on using this as my extreme cold winter gear with some thermals underneath. So far, so good. Haven't been let down by ICON yet. Only thing I can complain about is the arm length seems a bit long for someone of my height. I'm 5'7", 150lbs and got the medium. I've read that they run very large, but the fit is comfortable enough, and leaves some room for extra layers. If you're not planning on wearing any layers underneath it may be wise to buy a size smaller than normal.