Trail running demands sustained, irregular effort often at altitude. The body generates significant heat uphill, cools downhill, and faces varying wind, humidity, and sun exposure. Gear must be lightweight, breathable, quick-drying, and able to support intense effort without trapping moisture. The AYAQ layering system ensures optimal thermal stability in all these conditions.
1. Specific Trail Running Requirements
Continuous exertion produces heavy sweat that must be evacuated immediately. Poor moisture management causes chafing, rapid cooling, or discomfort. Fabrics must breathe, dry fast, and never restrict movement.
2. Base Layer
For trail running, the goal is to stay dry and light. AYAQ recommends: Mefonna (100% lightweight merino) for high altitude or cool temperatures; Biafo for versatile four-season use; MOLVENO for hot conditions with highly breathable construction. RWS-certified merino regulates temperature and limits odor over long distances.
3. Mid Layer
The fleece Kokanee supports cold outings or early morning trails. Breathable and lightweight, it stabilizes torso warmth without hindering moisture evacuation. It packs compactly in a trail pack.
4. Outer Layer
In trail running, the aim is to block wind and moisture without sacrificing mobility. The windbreaker SHANDAR is ideal for exposed ridges. In unstable or rainy conditions, a lightweight hardshell like LONAK offers effective protection with its recyclable Sympatex membrane (52,000 Schmerbers), while remaining breathable during prolonged effort.
5. Bottoms
A lightweight, breathable technical short or legging paired with protective pants for bad weather. For cold or windy sections, AYAQ technical pants (RIMO for breathability, NUNATAK for rain protection) ensure thermal continuity.
6. AYAQ Expertise
Vincent Defrasne emphasizes heat control on ascents: “Avoid overheating; regular ventilation helps maintain a steady pace.” Mike Horn tested windbreakers and hardshells in extreme conditions, ensuring a balance of lightness, protection, and mobility.
Conclusion
Trail running requires a minimalist yet highly effective system: lightweight RWS merino base layer, breathable fleece as needed, windbreaker or hardshell for ridges and rain. The AYAQ wardrobe optimally manages moisture, heat, and wind for performance across varied terrain.