At Spanish brand Buff, almost all products are one size. For example, the neck warmers, which we often call a "Buff," are available in one size, except for children's models. Buff does use two sizes for its caps. You can find out which one you need in the size chart below.
It's best to measure your head with a tape measure around the thickest point. Don't hold it too tight.
Size chart Buff
| Type | Mate | Head circumference |
| 5 Panel Go Cap | S/M | 53 - 57 cm |
| L/XL | 57 - 61 cm | |
| Speed Cap | S/M | 53 - 57 cm |
| L/XL | 57 - 61 cm | |
| Pack Speed Cap | S/M | 53 - 58 cm |
| L/XL | 58 - 62 cm | |
| Pack Sahara Cap | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 62 cm | |
| Go Visor | Unique | 53 - 61 cm |
| Pack Cycle Cap | Unique | 53 - 57.5 cm |
| Pack Speed Visor | Unique | 53 - 61 cm |
| Pack Trucker Cap | Unique | 57.5 - 63 cm |
| Pack Merino Fleece Cap | Unique | 53-61 cm |
| Baseball Cap | Unique | 58 cm |
| Trucker Cap | S/M | 53 - 57.5 cm |
| L/XL | 57.5 - 63 cm | |
| Summit Cap | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 61.5 cm | |
| Military Cap | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 61.5 cm | |
| Pack Summit Cap | S/M | 53 - 57 cm |
| L/XL | 57 - 61 cm | |
| Travel Bucket Hat | S/M | 54 - 56 cm |
| M/L | 56 - 59 cm | |
| Adventure Bucket Hat | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 62 cm | |
| Sun Bucket Hat | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 62 cm | |
| Explore Booney Hat | S/M | 54 - 57.5 cm |
| L/XL | 57.5 - 62 cm |
Description
Description
🧢 Light, natural and perfect for cool weather.
The BUFF Merino Lightweight Beanie is a minimalist hat from 100% merino wool that keeps you warm without overheating. Ideal as a comfortable base layer during activities with average intensity, such as walking, climbing or a brisk trail run.
✅ Why this beanie is so nice
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🐑 100% ethical merino wool (125 g/m²) – soft, light and animal-friendly
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🌡️ Excellent temperature regulation – warm when it's cold, breathable when your pace increases
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🌬️ Naturally breathable & quick-drying – comfortable in changing conditions
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🚫 Naturally odor-resistant – inhibits bacterial growth without chemical additives
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🎒 Ultralight & compact – easy to take with you as an extra layer
🔧 Specifications
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Material: 100% merino wool
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Weight of fabric: 125 g/m²
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Origin of wool: Ethically sourced, Australian sheep
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Features: Breathable, temperature-regulating, odor-resistant
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Fit: Light and comfortable, suitable as a base layer
🎯 Perfect for
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Walking and climbing in cool weather
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Trail running and outdoor activities at a moderate pace
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Anyone who has a natural, light and comfortable hat is looking for
A no-nonsense merino wool beanie you'll always want with you. Natural, functional, and just the right amount of warmth.





