Sub Sports Mens Thermal Long Sleeve Zip Neck Top Vest Base Layer Brushed Inner Thermal mock neck long sleeve with super soft hollow core fibres on the inside face of the fabric increases insulation and is designed to keep your body warm when exercising in colder conditions. The 4 way stretch fabric gives you a responsive fit and freedom of movement. Moisture-wicking fabric transports sweat away from the body during high intensity performance. The semi-compression fit improves blood circulation and oxygen delivery to the muscles increasing your endurance. A-seams seams provide comfort and prevent irritation for a chafe-free fit. The advanced high-wicking fabric helps you to stay dry by transporting moisture away from the skin, whilst its close fit provides targeted compression to your key muscle groups, increasing your power and endurance. Ideal for all sports including running, cycling, triathlon, OCR, rugby, football, fitness, gym, golf, tennis. This is a semi-fitted garment and is designed to feel close against the body. If you prefer a slightly less compressive fit, move up a size. Machine washable at 30 degrees. 86% Micro-polyester, 14% Elastane.