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 | Neckwear | Thermonet
ThermoNet® Multifunctional Neckwear: Warmth Without Bulk
The ThermoNet® technology Offers high-quality protection and keeps you warm with less bulk, ideal for intense activities in cold weather. This multifunctional neckwear is lightweight, warm, and features a seamless, single-layer design for maximum comfort. Designed with moisture-wicking properties, it helps you stay dry and comfortable during intense activities like skiing and trail running.
Key Features:
- ThermoNet® Technology: PrimaLoft® insulating fibers provide exceptional warmth without bulk, perfect for cold days.
- Lightweight and Breathable: High thermal insulation in a lightweight fabric that provides warmth without overheating during intense efforts.
- Moisture-wicking: Keeps you dry during intense activities by wicking away sweat.
- Recycled Material: Made with 58% recycled material for an eco-friendly choice.
- Seamless and Stretch: The 4-way stretch construction ensures ultimate flexibility and seamless comfort, without chafing.
- Soft Against the Skin: Soft fabric that feels comfortable all day without irritation.
Technical Data:
- Recommended for: Adults
- Compound: 96% Polyester, 4% Elastane
- Maintenance instructions: Wash at 40°C (coloured laundry)
Stay warm and comfortable this winter with the ThermoNet® multifunctional neckwear, designed for active performance in the coldest conditions, without compromising comfort and flexibility.
