These super smooth, opaque support tights have been manufactured with a new yarn technology called FIR (far infrared ray). Thermal energy emitted by the wearer is reflected back to the skin tissue, by a mineral additive in the yarn, allowing invigoration of blood circulation on the surface of the skin. Red Wellness Support Tights do not heat up and do not act like thermal underwear, in fact they help maintain the body's natural temperature. Their purpose is to improve blood flow in the lower limbs by graduated compression, and to improve blood circulation on the skin surface, smoothing the touch of your skin and helping to reduce the effects of cellulite. Unlike Solidea's micromassage and silver wave products, the Red Wellness support tights do not leave wave-like furrows on the skin, but instead, leave a smooth looking and smooth feeling, energetic pair of legs. Repeated washing does not alter the effectiveness of the FIR technology, nor does it diminish the elastocompression. Lab tests have confirmed the emissivity of infrared rays. These beautiful opaque support tights will not just look and feel stunning, but will effectively improve your blood circulation to help relieve tired, aching legs, swelling, varicose veins, phlebitis and thrombosis, and with having opaque fibres, will help hide any superficial blemishes and veins. The XL and XXL sizes feature an extra panel in the back to allow for more room, more stretch and better fit. XXL Size is priced at & 163;49.00, this will display automatically in your shopping basket. FIR Technology 18-21 mmHg Graduated Compression Anti-Cellulite Function Sanitised Hygienic Function