Sleek enough to slide under a helmet.
- Merino wool and acrylic blend.
- Soft micro-fleece liner band keeps your ears warm.
- Big ol' Black Diamond logo.
A windproof garment does not allow any air to permeate the fabric. A garment with windproof panels has panels of fabric that are totally windproof, but the rest of the garment may not be windproof. A wind-resistant garment resists some wind, but not as much as a garment that is windproof.