Trail running demands sustained, variable effort often at altitude. The body generates intense heat uphill, cools downhill, and faces changing wind, humidity, and sun exposure. Gear must be lightweight, breathable, quick-drying, and able to support continuous effort without moisture buildup. The AYAQ layering system ensures optimal thermal stability in all these conditions.
1. Trail Running Specific 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, the goal is to stay dry and light. AYAQ recommends: Mefonna (100% lightweight merino) for high altitude or cool temps; 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 blocking moisture transfer. It packs compactly in a trail pack.
4. Outer Layer
Trail outerwear must block wind and moisture without sacrificing mobility. The windbreaker SHANDAR (men / women) is ideal for exposed ridges. For unstable or rainy conditions, a lightweight hardshell like LONAK (men / women) offers effective protection with its recyclable Sympatex membrane (52,000 Schmerber rating), while remaining breathable during prolonged effort.
5. Bottoms
Lightweight, breathable technical shorts or leggings paired with protective pants for bad weather. For cold or windy sections, AYAQ technical pants (RIMO (men / women) for breathability, NUNATAK (men / women) for rain protection) ensure thermal continuity.
6. AYAQ Expertise
Vincent Defrasne emphasizes heat control uphill: “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 optimizes moisture, heat, and wind management for performance across varied terrain.
