Thermal protection, with dedicated 3D fabrics for breathability, air movement and comfort, the PRIMO WARM TIGHT SEAMLESS for men helps technical outerwear perform even better. * 37.5® Technology 37.5® Technology optimizes your body's microclimate, to maintain an ideal core temperature so you perform better, longer. Made from natural materials, fabrics made with 37.5™ Technology dry up to five times faster than similar fabrics, won't irritate your skin, and will never wash out or degrade. * Wicking and fast drying - Polyester and 37.5® blend breathes well and dries fast. * Odor Protection - 37.5® fabric fights odor naturally. * Air vent system - Salomon air vents are easy to open, allowing maximum air flow. Weight: 137 g (Size L) Material: * Body: 69% Polyester, 28% Polyamide, 3% Elastane