Heat Holders - Ladies Long Sleeve Thermal Top and Long Janes Set This Heat Holders set of thermal underwear is the perfect set for layering as of its easily fitting design for under your clothes for a smooth slim fitting thermal base layer for the colder days where one layer isn’t enough This thermal underwear set has a TOG rating of 0.39 adding that crucial extra layer of warmth. The higher the TOG the better the garment will keep you warm. The base layer is made of a lovely soft modal fabric which helps to add that extra bit of warmth and makes it extremely soft for added comfort to the garment. The technical construction of this thermal underwear along with its supportive fit have been designed so that it effortlessly shapes and works with your body’s natural contours providing the best fit possible - making it hardly noticeable under your clothing. The thermal underwear set includes a long sleeve thermal top, pair of long johns and comes in 2 colours: Black or White. Available in 2 size options: SmallMedium, LargeX-Large. The top is made from: 63% Modal, 35% Polyamide, 2% Elastane and the bottoms from: 34% Polyamide, 33% Modal, 31% Viscose, 2% Elastane and they are Machine Washable. Extra Product Details Heat Holders Ladies Thermal Underwear Set - Long Sleeve Top and Long Janes - Smooth and Slim Fitting - Thermal TOG Rating: 0.39 - Soft and Seamless Body - Available In Black or White