Proper layers key to staying warm outdoors
By Joe Jackson, Outside
When layering for snowy adventures, think about quality as well as quantity. Start with the three-layer principle: up top, you’ll want a form-fitting baselayer, a warm-breathable midlayer, and waterproof outerwear.
The logic is simple. If you’re active, sweat is the enemy. Soak yourself and you’re going to get cold no matter how puffy your down jacket is. Layering gives you the flexibility to react to changing temperatures and exertion levels (chairlift versus a mogul run). The three-layer system wicks sweat, provides insulation, and keeps out the elements more effectively than a single layer or too many layers.
Note: If you already have a layering system that works, stick with it.
“Soak yourself and you’re going to get cold no matter how puffy your down jacket is. . .” is correct – the drill is: (1) a warm torso first, to protect the heart and it’s need for warm blood flow; (2) as it is the outer extremities (hands & feet) that also need to receive the blood flow comes next, as they have contact with the ‘outer world’, and (3) everywhere in between, as comfort allows a clear head to maneuver & decide in bad weather. . .
I told my son (when in construction here) – always keep several pair of clean, dry socks in your truck, as the above “quoted line” especially applies to cold feet – if your feet are wet & cold, it’s a recipe for pneumonia. . .whatever the conditions. . .