Patagonia merino wool baselayer items (both long underwear and top in either turtleneck or mock-zip). Patagonia wool socks. Mid-layer fleece top, generally as tight as possible and with a zipper. Then a light outer layer for waterproofness and windproofness. The point is that you want the wool, which wicks away moisture, as close and tight to your body as possible. It'll keep you warm even when it gets wet, and it will pass the moisture to the fleece, which will distribute it and allow it to evaporate off your skin. Patagonia Level 3 wool and fleece keep my wife, who runs cold, comfortable even in Jackson Hole, probably the coldest and windiest skiing in the lower-48. If you're skiing for more than one day, you should have two sets of all baselayer (wool). It should cost in the range of $650, comes with a lifetime guarantee, and is used by those who actually do this professionally. eta: obviously I left out the pants, which you should purchase based on what you find comfortable. Bibs will be the most comfortable on the mountain. Snowboard style pants will be more trendy and lower cut, potentially exposing more skin to the snow. Helmet - find something you like. I bought a helmet with speakers inside so I can listen on the chairlift if I'm so inclined. Think that I actually used them once. Gloves - go with waterproof leather and treat it well. Recoat them every season. The ones with the pockets for handwarmers are popular. Mittens wear warmer than gloves.