**Product Specifications:**

**Brand:** YOURSUN

**Founded:** 1973

**Temperature Range:** -15°C to 15°C

**Types:** Regular underwear, thick underwear, fleece-lined thick underwear

**Material:** 100% cotton

**Features:** 7A antibacterial, dust mite resistant, triple-layer thick, anti-static

**Series:** Basic thermal series

**Craftsmanship:** Fine workmanship, combed cotton for ultimate wearing experience

**Antibacterial:** 7A antibacterial, effective after 150 washes

**Dust Mite Resistance:** Strong dust mite resistance

**Color Fastness:** Not easily fading, difficult to pill, not easily deformed

**Safety Standards:** Compliant with GB/T standards for carcinogenic aromatic amines, dyes, and antibacterial properties

**Comfort:** Breathable, moisture-wicking, soft and comfortable

**Sizes:** Available in various sizes from L to 3XL, with size chart for reference

**Color Options:** Available in ash gray, deep navy, and charcoal gray

**Care Instructions:** Machine washable, durable and long-lasting

**Additional Features:** Elastic fabric, round neck design, no odor, no formaldehyde, environmentally friendly

**Package Includes:** Antibacterial thermal round neck top and pants set

**Weight:** 210g

**Fabric:** 100% cotton (40s), 100% polyester fiber

**Fit:** Comfortable, moderate, tight-fitting, medium elasticity

**Size Recommendations:** Refer to the size chart for accurate fitting based on height and weight

These specifications outline the features and details of the YOURSUN brand's thermal underwear series, providing warmth, comfort, and durability for everyday wear.