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The 3-layer system: how it works, how to stay dry and how to choose the right gear

The 3-layer system is the foundation of outdoor protection. It helps manage warmth, moisture and changing weather by combining three complementary functions: wicking away moisture, providing insulation and protecting against the elements. Used effectively, this system delivers consistent thermal comfort, reduces the risk of getting chilled and lets you quickly adjust your clothing to match the intensity of your activity.

1. Why use a 3-layer system?

Your body produces heat and perspiration as soon as exertion increases. If moisture is not wicked away, it can cause rapid cooling during breaks or in windy conditions. If insulation is insufficient, the cold quickly sets in. And without reliable outer protection, rain or snow will saturate your clothing. The 3-layer system addresses precisely these three challenges.

2. Layer 1: wick away moisture (base layer)

The first layer manages perspiration and keeps your skin dry. At AYAQ, it is made exclusively from RWS-certified merino wool, which absorbs moisture, regulates temperature and continues to perform even when damp. Options vary depending on the weather and level of exertion: Mefonna (lightweight 100% merino) for intense activity; Biafo (versatile 100% merino) for year-round use; Shirwali (merino + Tencel, ~240 g) for cold conditions and early morning starts.

3. Layer 2: retain warmth (midlayer)

The midlayer traps warm air to protect against the cold while allowing moisture to escape. The Kokanee fleece is designed to balance insulation and breathability. In particularly cold conditions, lightweight insulation such as ULTAR (men / women) or FORNO (men / women) helps maintain an even more stable temperature.

4. Layer 3: protect against the elements (hardshell or softshell)

The outer layer protects against wind, rain and snow. AYAQ hardshells (LONAK (men / women), LONAK-XT (men / women)) use a recyclable Sympatex membrane with a waterproof rating of 52,000 Schmerbers, while increasing breathability as internal moisture levels rise. For dry, windy conditions, the RAVEN (men / women) softshell or the SHANDAR (men / women) wind-resistant jacket offer lighter protection with excellent freedom of movement.

5. How should you adjust your layers?

The secret to the 3-layer system is proactive management. Remove or add a layer before you start to feel hot or cold. Use ventilation zips from the start of your activity. A good system should let you fine-tune your protection without interrupting your activity.

6. AYAQ expertise

As Vincent Defrasne reminds us: “Moisture is what makes you cold. The role of the 3-layer system is to prevent it from staying on your skin.” Mike Horn, who tests AYAQ jackets in extreme environments, highlights the importance of a breathable membrane as exertion increases: robust protection without trapping moisture inside.

Conclusion

The 3-layer system is a simple yet extremely effective tool for all outdoor activities. With an RWS merino base layer, a breathable fleece and a Sympatex hardshell rated to 52,000 Schmerbers, the AYAQ range lets you face cold, wind, rain and changing temperatures while maintaining comfort and freedom of movement.


Shop the products featured on this page

LONAK-XT (homme)
LONAK-XT (men)
LONAK-XT (femme)
LONAK-XT (women)
SHIRWALI (homme)
SHIRWALI (men)
SHIRWALI (femme)
SHIRWALI (women)
SHANDAR (homme)
SHANDAR (men)
SHANDAR (femme)
SHANDAR (women)
MEFONNA (homme)
MEFONNA (men)
MEFONNA (femme)
MEFONNA (women)
KOKANEE (homme)
KOKANEE (men)
KOKANEE (femme)
KOKANEE (women)
LONAK (homme)
LONAK (men)
LONAK (femme)
LONAK (women)
ULTAR (homme)
ULTAR (men)
ULTAR (femme)
ULTAR (women)
FORNO (homme)
FORNO (men)
FORNO (femme)
FORNO (women)
RAVEN (homme)
RAVEN (men)
RAVEN (femme)
RAVEN (women)
BIAFO (homme)
BIAFO (men)
BIAFO (femme)
BIAFO (women)
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