No breathable waders are warm, you have to layer your own insulation underneath. I tried a pair of Hodgman Wadelites last winter and they worked just fine until the crotch began to leak after three months of intensive use. I have recently had two pair of Cabela's (one Gore-Tex and one Dry-Plus II) and found them to be quite comfortable and, so far, leak-free. The Dry-Plus IIs have to be one of the best bargains available in a breathable wader.