Men's Size: L Color: Black New, unused, with tags Immediate purchase OK [Product Details] Workman's popular "THERMOLITE Eco Mode Thermal Crew Neck" Perfect as a ready-to-wear inner layer for hiking and outdoor activities! With an ultra-lightweight design weighing only 126g, the crew neck style makes it easy to layer and is suitable for everyday use to serious mountain climbing. THERMOLITE Eco Mode material features a hollow fiber structure that balances excellent warmth retention with sweat-wicking (breathability). It stays comfortable without feeling sticky even when you sweat, allowing you to move freely. [Comparison with other brand materials] Highly recommended for serious hikers! THERMOLITE Eco Mode, a representative material for high-performance active insulation, is similar to "Octa" and "Polartec Alpha Direct." These materials utilize hollow structures and mesh knits to provide warmth, breathability, and quick-drying properties, with a common feature of being less stuffy during activity. You can comfortably wear Workman's THERMOLITE Eco Mode! Size...L