Men's thermal top; Long-sleeved; Zips down to the upper chest, to give you more control over your temperature; Performance fit to keep your body warmth in; Flatlocked seams; Hypoallergenic; Warm zones to provide insulation on cold spots; Vented mesh zones to provide ventilation on hot spots; Quick-drying; Odour-resistant; Stain resistant; The North Face logo on the left breast; Material: 87% HyActive hollow core polypropylene, 10% Polyamide, 3% Elastane;