Quick Answer
When hunting at high altitudes, modify your layering system to include more insulating layers, prioritize wind-resistance, and adjust for lower air pressure. Consider adding a lightweight, breathable windbreaker and a warm beanie or hat. This will help maintain body heat and prevent cold stress.
Adjusting for Lower Air Pressure
At high altitudes, the air pressure is significantly lower, which means the human body loses heat more quickly. To compensate, you’ll want to add more insulating layers to your system. Consider wearing a base layer (top and bottom) made of moisture-wicking materials like merino wool or synthetic fabrics. Next, add a mid-layer of insulating fabric such as fleece or down, and finally, a waterproof and breathable outer layer to protect against wind and precipitation.
Wind-Resistance and Cold Stress
Wind is a significant factor to consider when hunting at high altitudes. Strong winds can quickly strip away body heat, leading to cold stress and potentially life-threatening situations. To combat this, add a lightweight, breathable windbreaker to your layering system. Look for one with a DWR (durable water repellent) finish to help shed snow and precipitation. Additionally, prioritize a warm beanie or hat to cover your head and ears, as these areas are prone to heat loss.
Layering Specifics for High-Altitude Hunts
For a high-altitude hunt, consider the following layering system: Base layer (top and bottom), mid-layer (fleece or down), insulating mid-layer (down or synthetic), waterproof and breathable outer layer, and a windbreaker (breathable and DWR treated). Aim to maintain a minimum of 3-4 insulating layers to combat cold stress and wind chill. Additionally, consider packing a spare set of insulating layers in case you get wet or sweaty, and adjust your layering system accordingly to maintain optimal body temperature.
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