Blackspade 1265 women's thermal undershirt fabric content : 49% viscose 49% polyester 2% elastane blackspade thermal collection is ideal for those who are interested in outdoor activities such as skiing, snowboarding, motorcycling, mountaineering, cycling, sailing and jogging, to preserve the heat of the wind under cold ambient temperatures and for all age groups who want to keep the water warm and dry. Thermal levels are thermal 1. What does level mean?: blackspade 1. Thanks to its light and soft fabric that can be worn in all seasons, the level thermal products are suitable for low and medium level indoor and outdoor activities and daily use. For detailed information about thermal levels, you can visit our questions page, which is frequently asked about thermal levels. Thermal insulation: Viscose fiber is a fiber produced from cellulose. Thanks to the specially produced and specially cross-sectional viscous fibers in the Blackspade thermal routes, thermal insulation and the rate of discharge of the liquid to the outside are increased. The thermal insulation of cotton wool is much thicker than that of cotton wool. Softness: Thanks to these special fibers, wool wool naturally acquires a softness. Non-sweaty fabric: The polyester yarn used in the fabric of the thermal heaters contributes to the dryness of the water by providing rapid drying and moisture transfer. Certificates blackspade thermal heaters are OLAF-TEX certified, damage to health in button hangings of production

it is not possible to use a softener during washing in order to reduce the thermal properties of the product.