{"id":70586,"date":"2020-01-29T18:00:11","date_gmt":"2020-01-29T17:00:11","guid":{"rendered":"https:\/\/mellos1986.com\/how-to-dress-in-the-mountains-layers-are-the-secret\/"},"modified":"2026-09-16T05:02:28","modified_gmt":"2026-09-16T03:02:28","slug":"how-to-dress-in-the-mountains-layers-are-the-secret","status":"publish","type":"post","link":"https:\/\/mellos1986.com\/en\/how-to-dress-in-the-mountains-layers-are-the-secret\/","title":{"rendered":"How to dress in the mountains: Layers are the secret!"},"content":{"rendered":"

\"Hiker
\nThe layering system remains the smartest way to manage thermoregulation in the mountains, whatever the season.<\/em><\/p>\n

How to dress in the mountains |<\/span> Layers are the secret<\/strong><\/p>\n

One of the main challenges when doing activities in the mountains is undoubtedly clothing. Temperatures can be highly variable, and there’s a real risk of wearing garments that are sometimes too warm, other times far too light, partly because of the physical effort involved. Layered clothing, colloquially known as “onion dressing”, is the smartest way to manage this thermoregulation: it lets you adjust body comfort by adding or removing garments based on activity level or changing weather conditions.<\/p>\n

Even if you don’t wear all three layers at the start, it’s always worth carrying them with you: you can take something off if the temperature rises, but you can’t add a layer you don’t have with you.<\/p>\n

How to dress in the mountains |<\/span> Base layer: managing moisture<\/strong><\/p>\n

\"Close-up<\/p>\n

The layer closest to the skin has the essential job of wicking away sweat, absorbing excess moisture so the skin doesn’t stay wet. In cold weather, long thermal underwear keeps the skin warm as well as dry: an essential precaution that, in the most extreme cases, prevents the risk of hypothermia.<\/p>\n

Technical fabrics (polyester, nylon)<\/strong>
\nAdvantages: quick drying, consistent performance.
\nDisadvantages: tend to hold odours more than natural fibres.<\/p>\n

Natural fibres (merino wool, silk)<\/strong>
\nAdvantages: natural odour management, pleasant against the skin.
\nDisadvantages: slower drying, generally higher cost.<\/p>\n

Differences between materials are often subtle, both in breathability and in how long odours linger: many people simply choose based on personal fabric preference. As for weight, options range from ultralight to heavy: thicker fabrics keep you warmer, but it’s worth remembering that the primary purpose of the base layer remains sweat absorption, not thermal insulation.<\/p>\n

Base layer in hot weather<\/strong>
\nEven in high temperatures, dry skin provides more comfort than wearing the bare minimum: any summer t-shirt can work as a base layer if it absorbs moisture well, while cotton, perfect on a dry, hot day, should be avoided in winter because it retains water that can chill the whole body when it’s cold. Underwear (briefs, boxers, bras) should also contribute to moisture absorption, a detail that matters even when worn under winter thermal underwear.<\/p>\n

How to dress in the mountains |<\/span> Mid layer: the insulation function<\/strong><\/p>\n

The insulating layer traps the heat radiated by the body: the more efficiently it traps that heat, the warmer and more comfortable you’ll feel. Thicker doesn’t always mean warmer: the efficiency of the insulating material matters at least as much as the garment’s thickness.<\/p>\n

Polyester fleece<\/strong>
\nAdvantages: retains warmth even when wet, dries quickly, good breathability.
\nDisadvantages: that same breathability lets wind pass through, dispersing heat unless paired with an outer layer.<\/p>\n

Down insulated jacket<\/strong>
\nAdvantages: better weight-to-warmth ratio than any other insulator, easy to compress (efficiency measured in fill power, between 450 and 900); enclosed in a shell, it also offers some resistance to water and wind.
\nDisadvantages: loses much of its insulating effectiveness when wet.<\/p>\n

Synthetic insulated jacket<\/strong>
\nAdvantages: maintains insulating capacity even when wet, suited to rainy conditions.
\nDisadvantages: compresses less well than down, so bulkier in the pack.<\/p>\n

As an alternative to a full shell, a windbreaker with an internal membrane that blocks air can be enough when rain isn’t expected.<\/p>\n

Discover our men’s sports jackets<\/a> and women’s sports jackets<\/a><\/strong><\/p>\n

\"Close-up<\/p>\n

How to dress in the mountains |<\/span> Outer layer: protection from rain and wind<\/strong><\/p>\n

The outer layer (shell) protects from wind, rain and snow, and is essential in extreme cases like a storm, when if water and wind managed to get through you’d seriously risk hypothermia. Shells fall into four main categories:<\/p>\n

Waterproof\/breathable shell<\/strong>
\nAdvantages: the most functional option for borderline conditions, often also the most durable.
\nDisadvantages: the most expensive in the category.<\/p>\n

Water-resistant\/breathable shell<\/strong>
\nAdvantages: more affordable, suited to drizzly conditions and high activity levels, in tightly woven fabric that blocks light wind and light rain.
\nDisadvantages: less protective in heavy, prolonged rain.<\/p>\n

Softshell<\/strong>
\nAdvantages: emphasises breathability thanks to stretch panels, comfortable for aerobic activity; many models combine light rain resistance, wind protection and light insulation in a single garment.
\nDisadvantages: doesn’t replace a true waterproof shell on days of heavy rain.<\/p>\n

Waterproof\/non-breathable shell<\/strong>
\nAdvantages: affordable, suited to rainy days without physical activity (fishing, recreational events).
\nDisadvantages: doing physical activity while wearing one still ends up soaking the layers underneath with sweat.<\/p>\n

How to dress in the mountains |<\/span> Layering examples<\/strong><\/p>\n

The following examples are designed for someone who doesn’t feel the heat or cold particularly strongly, doing a half-day hike of intermediate difficulty: personal effort level and metabolism remain variables no generic suggestion can replace.<\/p>\n

Cold environments<\/strong>
\nMedium-light polyester underwear (top and bottom), a synthetic-insulated jacket, medium-weight brushed trousers, waterproof\/breathable rain jacket and trousers.<\/p>\n

Wet, rainy environments with normal temperatures<\/strong>
\nLong underwear in light polyester, a light fleece jacket, technical hiking trousers, light waterproof and breathable jacket and trousers (with plenty of vents).<\/p>\n

Hot environments<\/strong>
\nPolyester briefs and a short-sleeved synthetic t-shirt, convertible nylon hiking trousers, a light windbreaker.<\/p>\n

The choice between these alternatives depends on destination, time of year, sport practised, budget and, why not, personal aesthetic preference.<\/p>\n

How to dress in the mountains |<\/span> The layering system for different sports<\/strong><\/p>\n

Hiking and trekking<\/strong>
\nThe classic three-layer system works almost always: the main variable is fabric weight, to be chosen based on season and altitude.<\/p>\n

Ski touring and snowshoeing<\/strong>
\nHere the system needs to manage two very different phases: the climb, where you sweat intensely and it’s worth lightening the layers, and the descent or breaks, where the body cools quickly and the insulating layer needs to go back on right away. Dressing lightly on the way up, even at the cost of feeling cold for the first few minutes, is almost always the right choice: it avoids excessive sweating and ending up with wet base layers.<\/p>\n

Climbing<\/strong>
\nFreedom of movement for shoulders and arms matters more than fabric weight: stretchy mid layers and light shells are favoured, often sacrificing some insulation for a fit that doesn’t hinder technical movements.<\/p>\n

Cross-country skiing<\/strong>
\nA constant, intense-effort activity: breathability of the base and mid layer matters more than pure insulation, while the outer layer is often reduced to a simple light windbreaker, given the near-continuous heat production.<\/p>\n

How to dress in the mountains |<\/span> Quick guide by temperature<\/strong><\/p>\n