Bejirog [2 Sets Thermal Velvet] Men's Warm Underwear Set Thickened Cashmere Silk Autumn Winter Long Johns

Incorporates natural fibers

Cashmere for natural insulation, Mulberry Silk for softness and moisture balance

Contains 17 types of human amino acids from natural mulberry silk infusion

Inner layer locks warm air, providing soft and comfortable thermal insulation

Elastic waistband with high elasticity, non-restrictive fit, and skin-friendly stretch

Wider crotch design for comfort during movement (jumping, running)

Anti-mite and antibacterial properties rated 10A (meets T/TTGA007-2024 standard)

Anti-pilling grade 4, color fastness grade 5

Meets baby standard Class A, formaldehyde-free, and free from carcinogenic aromatic amine dyes

Infrared heating technology for additional warmth

Anti-static performance certified (GB/T12703.1-2021)

Full garment edging design including collar, cuffs, and hem to prevent curling and enhance wind resistance

Four-needle six-thread stitching for a seamless, close-to-skin feel

Black

Gray Blue

Product elasticity, fit, texture, and thickness designed for close-to-skin softness and comfort

Tested and certified by third-party authoritative institutions for quality and safety standards

Suitable for micro-cold, cold, and severe cold climates with temperature adaptability from -45°C to 15°C (based on environmental simulation tests; individual experience may vary)