X-Bionic Invent Round Sleeveless Base Layer Top White - M

This under layer for warm weather uses thermoregulation to counteract the risk of overheating. When worn directly on the skin, it produces its climate-control effect 92% Polyamide, 5% Elastane, 3% Polypropylene Invent 4.0 Light Singlet IN-YT01S19M The integrated, patented and award-winning 3D Bionic Sphere System cools you when you perspire and warms you when you're cold.