Heat Holders Mens Thermal Underwear Short Sleeve Top For over ten years Heat Holders have been creating exceptional warm gear which you can count on for heat, comfort and protection. Heat Holders thermal construction holds more warm air close to the skin, and helps to retain heat to keep you warmer for longer. Heat Holders thermal underwear is the perfect underwear set for layering, with its easy fitting design for under your clothes. This helps make a smooth slim-fitting thermal base layer for the colder days; where one layer isn t enough This thermal underwear set has a comfortable TOG rating of 0.45, adding that crucial extra layer of warmth. The ribbed construction of this thermal underwear has been designed so that it effortlessly shapes to the bodies natural contours - helping to provide the best fit possible. This makes it hardly noticeable under your clothing. This shirt has a longer body length so that the vest is able to be tucked in to stop cold drafts. It also has a seamless body, which reduces the risk of irritation for all-day comfort. Extra Product Details Thermal Short Sleeve Top Mens Thermal Underwear 0.45 Tog Rating Retain Heat and Warmth Ideal for Layering 2 Colours Available Seamless Body Long Length Body Ribbed Construction Machine Washable 53% Polyester, 47% Cotton