Product Description: Blocks 99% of wireless wave (3G, 4G, 5G, Wi-Fi, Bluetooth) Anti-odor Breathable Extremely soft fabric for optimal comfort Machine-washable Wash on cold and delicate, using your regular detergent. Material: 53% Cotton 42% Silver 5% Polyester 99% Emf radiation protection Water absorbent Breathable Heat reducing No color fade Wrinkle free Non-shrink Sizing: All Faraday sizes are designed as Unisex for a versatile fit. Most women prefer to size down 1-2 sizes.