Whether you choose to use the single-layer Quantum as a facemask or neck warmer, this hinged hood keeps you warm and dry, while feeling soft against your skin. Lined with Comfort Plush (TM), this Quantum is single-layer, and offers the option of functioning as a facemask or neck warmer due to the hinge built into the hood. Breathable and quick drying while offering 4-way stretch, this odor resistant Quantum feels insanely soft against your skin while supporting your demanding, active lifestyle. Turtle Fur Sherpasoft Shinobi Balaclava | Black | Christy Sports