Description
Outlast thermal undergarments were designed as the first generation of clothing that can regulate your body temperature actively and continuously. When it is hot, the fabric absorbs the excess heat and keeps you cool. When it is cool, the heat previously stored in the fibre is restored and protects you from the temperature drop. Outlast technology originates from research by NASA to protect astronauts from sudden changes in space temperature. This technology has powerful intelligent temperature regulation performance which can make the human body feel at a comfortable temperature. By reducing the increase in body temperature by an average of 8% (at -2°C), Outlast fibres in this underwear, reduces heart rate acceleration and optimizes breathing control, thereby contributing to your performance, endurance, resistance to effort and fatigue reduction. Moisture Absorption and Breathability Outlast blended fabric has high moisture absorption and breathability, wicking moisture in time according to body temperature changes, keeping the body dry, comfortable and breathable. Free Stretch Outlast blended fabric has excellent antistatic and drape properties. Composition 92% PES Outlast® 8% EA elastane Washing Machine wash at 40°C, if possible, in a mesh bag to avoid friction with other products that could damage the fabrics (gloves, backpack or any other item that may have Velcro strips). No fabric softener. No dryer. No ironing. Questions and Answers: Question: Hi does this have a zip or opening for flies? Answer: Hi, thank you for your question and interest in our Outlast Thermal Underwear. Yes, the men's bottoms - long johns, do have a fly opening.