Tubes allow the fabric to be worn in “wrinkles”. This way the cooling effect is diverted away from the skin.
What it needs
- A thin fabric. Too thick and it will be warming
- A breathable fabric. Without that you have warming again
- A fabric that wicks moisture away from the skin. The dryer the skin the better
Original Buff® versus High-UV Buff®
The Original Buff® is better for chill protection than the High-UV Buff®.
Should you be a big sweater I would still go with the High-UV Buff®.