Loco-Deer-SlayerYo, layering is an art but a 3 layer system has stood the test of time.
1) Layer next to skin: This base layer is all about breathability. Generally depending on the conditions you want to go with a cotton (HOT days) or a synthetic layer. You DON'T, want this layer to get wet from sweat, that's the primary goal when choosing.
2) Insulating Layer: Traps air next to your body. Thicker the air pocket the more insulation you have (convection >> conduction). I generally switch from a fleece or down depending on the conditions.
3) Shell Layer: Self-explanatory. Keeps the elements off of you.
The overall goal when choosing layers is to choose the clothing that provides the most comfort in the largest temperature ranges for the smallest amount of weight/bulk. This is overkill for most resort days, but when you actually have to think about what layers to bring this is a good approach.
This guy knows what's up. For me it's all Patagonia:
Base layer merino wool Patagonia long sleeve shirt if it's 25 degrees plus. If colder, I go with a R1 half zip thingy.
Mid layer a medium insulated, somewhat windproof hoodie. i got the nano-air, which patagonia says breathes so well that you can zip it up and forget about it.
Last up is a goretex shell.
With the three of these layers, I'm all set all year round whether the park, backcountry, or just groomer laps on the resort