**Product Specifications:**

**Brand:**

**Material:** Natural insulation, black technology heating, Xinjiang long-staple cotton, lightweight and warm, comfortable and elastic

**Features:** Double-sided brushed 200G, plush heating yarn 190G, plush heating yarn 320G, silk cashmere protein 360G

**Temperature:** +C, ++℃, +++℃

**Design:** Thin as a cicada's wings, seamless design for a comfortable fit

**Technology:** AIR II technology, 0-weight reduction by 10%, enhanced warmth, moisture absorption and heating

**Antibacterial:** AAA antibacterial, effective after 50 washes

**Quality:** Grade A, suitable for infants, durable and easy to care for

**Static Electricity:** Natural anti-static, excellent anti-static performance

**Color Options:** Black, deep floral gray, lotus root color for men; lotus root color, black for women

**Product Name:** WARM-TECH Lightweight Thermal Underwear Set

**Sizes:** Men's (M-XXL), Women's (S-XL)

**Material Composition:** Varies by model and color, but generally includes polyester, modal, spandex, and other fibers

**Standard:** FZ/T73024-2014, GB18401-2010 Class A

**Packaging:** Reusable packaging with WARM-TECH branding

**Certifications:** TITS, national quality inspection centers, and other relevant authorities

**Care Instructions:** Machine washable, retains quality after multiple washes

**Fit:** Elastic, slim fit design suitable for Asian body types

**Measurement Guide:** Detailed size charts for men and women, with recommendations based on height and weight

**Quality Assurance:** Tested for moisture absorption and heat retention, meets industry standards

**Additional Information:** Detailed testing reports available upon request

Please note that the product specifications may vary slightly based on batch and color variations, but this does not affect the overall quality and performance of the product.