The 3-layer system is the foundation of outdoor protection. It manages heat, moisture, and weather changes by combining three complementary functions: wicking moisture, retaining insulation, and shielding from the elements. When mastered, this system provides stable thermal comfort, reduces chill risks, and allows quick gear adjustments based on activity intensity.
1. Why use a 3-layer system?
The body generates heat and sweat as effort increases. Without moisture wicking, sweat cools rapidly during breaks or in wind. Insufficient insulation lets cold in quickly. Without reliable outer protection, rain or snow saturate clothing. The 3-layer system addresses these three challenges precisely.
2. Layer 1: moisture management (base layer)
The first layer controls sweat and keeps skin dry. At AYAQ, it’s made exclusively from RWS-certified merino wool, which absorbs moisture, regulates temperature, and performs even when damp. Options vary by weather and effort: Mefonna (100% lightweight merino) for intense activity; Biafo (100% versatile merino) for all-season use; Shirwali (merino + Tencel ~240g) for cold and early starts.
3. Layer 2: heat retention (midlayer)
The midlayer creates thermal volume that protects against cold while allowing moisture to escape. The fleece Kokanee balances insulation and breathability. In very cold conditions, a lightweight insulated layer like ULTAR or FORNO further stabilizes temperature.
4. Layer 3: protection from elements (hardshell or softshell)
The outer layer shields from wind, rain, and snow. AYAQ hardshells (LONAK, LONAK-XT) feature a recyclable Sympatex membrane with 52,000 Schmerber waterproof rating, while enhancing breathability as internal moisture rises. For dry, windy conditions, the softshell RAVEN or windbreaker SHANDAR offer lighter, highly mobile protection.
5. How to adjust layers?
The key to the 3-layer system is proactive management. Add or remove layers before feeling hot or cold. Ventilation zips should be used from the start of activity. A good system enables precise protection adjustments without interrupting movement.
6. AYAQ expertise
Vincent Defrasne reminds us: “Cold comes from moisture. The 3-layer system’s role is to prevent it from lingering on the skin.” Mike Horn, who tests AYAQ jackets in extreme environments, emphasizes the importance of a breathable membrane during increased effort: solid protection without trapping internal moisture.
Conclusion
The 3-layer system is a simple yet highly effective tool for all outdoor activities. With an RWS merino base layer, breathable fleece, and a Sympatex 52,000 Schmerber hardshell, AYAQ’s wardrobe equips you to face cold, wind, rain, and temperature shifts while maintaining comfort and mobility.