The Aubrion React Winter Base Layer is perfect for layering up in colder weather with its soft brushed inner and heat-regulating properties. Designed for a slim, flattering fit, it features a convenient 1/4 zip neck for ventilation and a concealed zip pocket to secure your valuables. Key Features: - Soft brushed inner with heat-regulating properties - Stretch fabric for a slim, flattering fit - 1/4 zip neck for ventilation - Concealed zip pocket for safekeeping of valuables - Machine washable at 30°C - Material: 88% Polyester, 12% Spandex brushed winter fabric