LangSha Women's Thermal Underwear Set, Half Turtleneck, Fleece-Lined, Thickened, Ultra-Soft 10A Antibacterial German Velvet Heating Top and Bottom

High-density, ultra-thick warm fleece with heat retention properties

Far-infrared heating fabric that absorbs far-infrared rays and generates heat on the skin surface for continuous warmth

24-hour long-lasting heat retention and circulation heating

Non-ionic anti-static treatment with residual charge only one-third of national standard

Low-carbon eco-friendly yarn-dyed colors

Seamless bone-free stitching with four-needle six-thread technology for comfort and reduced chemical residues

Safe dyeing process to prevent color fading

Temperature increase value approximately +9.1°C within 30 seconds

Heat retention rate about 46.96% to 50%

Effectively blocks cold air and locks in heat

Acts like a wearable electric blanket, providing core warmth in severe cold