Buff DryFlx Neckwarmer:

The DryFlx® Multifunctional Neckwear is lightweight warmth for cool weather activities with 360º reflectivity for nighttime visibility and a thermally efficient 4-Way ULTRA STRETCH fabric that flexes with your body's motion. BUFF DryFlx® Multifunctional Neckwear is approved and recommended by The Skin Cancer Foundation.