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 |
BUFF | Trucker Cap | UTMB Edition
The BUFF Trucker Cap UTMB Edition combines casual style with sporty functionality – perfect for everyday use and as an ode to the largest trail running event in the world: the UTMB® du Mont-Blanc.
With his ventilated mesh panels, preformed valve and snap-back closure This cap features the iconic California trucker style, reinvented by BUFF. The built-in sweatband wicks away moisture, keeping your head dry and comfortable, even on hot days.
Designed in Barcelona by the BUFF® Design Team, and now available as official UTMB® collectionWhether you're at the starting line in Chamonix or just want to train or relax in style, this cap shows you're part of the trail community.
⭐ Key Benefits
- 🌍 Official UTMB® cap – limited edition collection
- 🧢 Iconic trucker style – mesh panels &snap-back closure
- 🌬️ Breathable &comfortable – prevents overheating
- 💦 Sweat-wicking inner band – keeps your head dry
- 🎯 Adjustable – always fits thanks to the snap-back system
📊 Specifications
- Brand: BUFF
- Model: Trucker Cap – UTMB Edition
- Colour: Dark blue
- Material: 100% polyester (crown, peak, sweatband)
- Fit: One size fits most (snap-back adjustable)
- Weight: n.b. (light &(and breathable)
- Usage: Casual, walking, light activities, lifestyle
- Country of production: China
- Maintenance: Hand wash, do not tumble dry, do not iron
🎯 Perfect for
Trail runners and fans of the UTMB® who want to stylish, breathable and official cap want to wear – both on the trail and in everyday life.
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Why this
