SUPIELD Men's Thermal Set Autumn Winter Knee Aerogel Fleece Dual Cold Protection Particle Gray 4XL

High-performance aerospace thermal inner layer featuring aerospace-grade aerogel composite material.

Same thermal insulation material used in the Weber Space Telescope.

Lightweight, thin, and invisible warm spots for enhanced comfort.

Outer layer utilizes far-infrared warming fibers for temperature elevation.

Aerospace aerogel composite material provides superior heat insulation and retention.

Thermal insulation efficiency increased by 33.5% compared to previous SUPIELD aerogel thermal wear.

Aerospace aerogel contains over 80% air, offering exceptional insulation equivalent to 20-30 layers of ordinary glass per inch thickness.

Warmman far-infrared fibers have finer fiber diameter (8.58-11.06 microns) than silk (16.7 microns) and cashmere (4-16 microns), providing softness and warmth.

Fiber fineness data verified by Textile Materials Science and Warmman fiber fineness test report (No. SH2316100).

Reinforced thermal zones at knees, shoulders (unisex), and abdomen (female-specific) with aerospace aerogel composite for targeted warmth.

High breathability mesh design maintains dry and comfortable skin by efficiently wicking moisture.

5A-grade antibacterial barrier suitable for close-to-skin wear.

Antibacterial performance remains effective after 100 washes.

Anti-static treatment eliminates static shocks and noise during winter.