The Dual Layer Tube is our Swiss Army Knife for face protection. No matter what the weather throws at your face, The Dual Layer tube will have you covered. Mindfully constructed with TREO fabric technology allowing for optimal airflow and thermal regulation. Featuring a seamless PERFA dual-layer mesh liner for added warmth without compromising breathability ensuring that you stay warm and comfortable in even the most extreme environments. Don 't leave home without it. BlackStrap Dual Layer Tube Neck Warmer | Black | Christy Sports