Choosing the right size is essential to ensure the performance of technical apparel. A fit that is too loose reduces thermoregulation and creates unnecessary air pockets. A fit that is too tight limits movement and can hinder natural ventilation. At AYAQ, sizing is designed to be intuitive: for almost the entire range, your usual size is the right one.
1. A simple rule: if you wear M elsewhere, you wear M at AYAQ
AYAQ cuts are calibrated to align with outdoor market standards. The vast majority of users find their usual size fits perfectly, whether for hardshells, merino base layers, fleece jackets, or technical pants.
This choice is deliberate: it ensures consistency within the 3-layer system and facilitates layering without complex adjustments.
2. A special case: the Baltoro down jacket
BALTORO features an innovative construction, awarded for its freedom of movement. Its geometry fits the silhouette more closely than traditional down jackets. To maintain this comfort and allow optimal layering, we recommend choosing one size up from your usual size.
3. Size chart — Men
| Size | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| EU | 46 / S | 48 / M | 50 / L | 52 / XL | 54 / XXL |
| US | 36 / XS | 38 / S | 40 / M | 42 / L | 44 / XL |
| Height (cm) | 171–175 | 175–179 | 179–183 | 183–193 | 193–197 |
| Chest circumference (cm) | 95–98 | 99–102 | 103–106 | 107–110 | 111–114 |
| Waist circumference (cm) | 81–84 | 85–88 | 89–92 | 93–96 | 97–100 |
| Hip circumference (cm) | 96–99 | 100–103 | 104–107 | 108–111 | 112–115 |
4. How to interpret the chart based on your activity?
- Dynamic activities (trail running, ski touring, light mountaineering): your usual size ensures mobility and thermal efficiency.
- Versatile use or cold conditions: if you are between sizes, opting for the larger size can provide extra comfort without sacrificing performance.
- Down jackets: only for BALTORO, choose one size up; for ULTAR and FORNO, stick to your usual size.
5. Practical examples
- You are 178 cm tall with a 101 cm chest → M.
- You are 184 cm tall with a 108 cm chest → XL.
- You are between L and XL and want to wear Baltoro with a thick sweater → XL recommended.
Conclusion
AYAQ sizing is intentionally consistent and straightforward. Your usual size works across the entire range, with one exception: the BALTORO down jacket, which requires sizing up to fully express its comfort and technical design. For any further questions, our team is available to help you refine your choice.