Unisex Elastic Design – Good elasticity fits most head sizes for men and women, easy to match with daily casual outfits. Warm Practical – Soft beanie style keeps warm in cold weather, while providing reliable electromagnetic protection. Widely Used in Daily Life – Perfect for home, office, travel and people who stay long time near electronic devices. Soft Comfortable Material – Lightweight, breathable and skin-friendly, no stuffy feeling, comfortable for long time daily wearing. Effective EMF Shielding Performance – Made of professional anti-radiation fabric, effectively shielding electromagnetic waves, WIFI and daily electronic radiation.