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
The warmest BUFF from the Merino collection. With 500 g/m² Made from premium merino wool, this is the ultimate neck warmer for extremely cold conditions. Super soft, odor-resistant, and completely natural—perfect for those who value warmth and sustainability.
✨ Highlights
- 🔥 Heavyweight 500 g/m² merino — maximum warmth for winter and freezing days
- 🐑 100% ethically sourced merino wool — soft, comfortable and completely natural
- 🚫 Naturally odor-inhibiting — merino prevents bacterial growth and stays fresh for longer
- 🌡️ Natural temperature regulation — warm when it's cold, breathable when you move
- 🌍 Eco-friendly choice — sustainable, natural and cruelty-free
🧵 Materials
- 100% Merino wool
🧼 Washing instructions
- ❌ Do not tumble dry
- ❌ Do not iron
🏃♂️ Perfect for
- Trail running in extreme cold
- Winter hikes &snow adventures
- Daily use in cold climates
- Anyone looking for maximum warmth in a natural, sustainable layer




