Teton Bros. Layering Ideas (Severe Winter)
Layering for the harsh winter season to protect you from extremely cold weather conditions and allow you to move around comfortably in all conditions, from sunny skies to blizzards.
This article introduces the basic concepts recommended by Teton Bros., primarily for backcountry and skiing. Each individual's "comfort" varies depending on the mountain range they are heading to, the time of year, the weather, whether they are sensitive to heat or cold, and other factors. Learn about the role of each layer and the functions of each product, and discover the layering system that's best for you.
Photo: From top left)
HOBACK OVER HOODIE
TB Jacket/TB Pant
Sub Jacket
Hoback Knee Pants
MOB Wool Hoody／MOB Wool Pant
[OVER JACKET]
Keep warm over your shell during breaks
When hiking in the snowy mountains during the coldest of winters, it's more important to be careful of overheating than the cold. If you wear too many layers because it's cold, you'll sweat while hiking, which will cause your body to cool down.
So, while you're active, you can maintain an appropriate temperature with a thin, breathable mid-layer, and when you take a break, you can wear an over-jacket over the shell.
Instead of putting your over jacket in a stuff sack, pack it in the gaps of your backpack so that you can access it quickly at any time. When doing so, leave the zippers on the cuffs open so that you can put it on with gloves on the next time you take it out. 
[SHELL]
Blocks snow and wind
The role of the shell is to keep out snow, wind, and rain, with protection taking priority over insulation.
Waterproof materials are usually used, but the more waterproof the garment, the more sweat and condensation occur inside. This is where high-performance shell materials come in, which are highly waterproof yet can also expel sweat vapor from inside the garment.
Teton Bros. uses the highly breathable waterproof and breathable material "Täsmä" to reduce sweat buildup. Large ventilation holes in the jacket and pants provide additional ventilation. Teton Bros. believes that keeping the inside of your clothing dry with sweat is directly linked to safety on snowy mountains. 
● TB Jacket(Men) / WS TB Jacket(Women)
● TB Pant(Men) / WS TB Pant(Women)
[MID LAYER (ACTIVE INSULATION)]
Temperature and humidity control
In the frigid snowy mountains, people tend to choose mid-layers with high thermal insulation, but as you move, your body temperature rises and heat builds up inside your clothing. That's why "active insulation" is a mid-layer that focuses on preventing overheating and maintaining an appropriate temperature. It retains moderate heat while allowing heat to escape through ventilation, maintaining a comfortable temperature range while you're active - neither too cold nor too hot. However, this type of clothing does not necessarily feel "warm" the moment you put it on, so when you're not moving, such as during breaks, you'll need to supplement its warmth by wearing an over-jacket over the shell. 
[BASE LAYER]
Sweat management and heat retention
The main role of base layers, which are worn directly against the skin, is to manage sweat.
Autumn/winter models have the ability to retain heat, but this is merely a secondary factor. If you sweat and your body cools down, it can lead to fatal hypothermia, not just in the harsh winter.
Therefore, base layers must be able to quickly absorb sweat and spread it throughout the fibers to promote drying. The speed and amount of moisture absorption, as well as the ability to diffuse and dry, vary depending on the material. 
● MOB Wool Hoody(Men) / WS MOB Wool Hoody(Women)
● MOB Wool Pant(Men) / WS MOB Wool Pant(Women)