● Condition: Brand new, unused Hidamari, the thermal underwear that made headlines as "the underwear worn by the Everest expedition team," is the highest-performance series!! This is the "Hidamari Saikyo (Strongest) Chomolungma Men's Underpants (M)". This single layer provides the warmth of three! With its unique three-layer structure made of Danlon, it's the ideal thermal underwear, combining heat retention, quick-drying properties, breathability, and ease of movement. Made in Japan, it suppresses static electricity and eliminates dust adhesion. Returns and exchanges are accepted for defective products, but otherwise, please understand that no cancellations or returns are accepted. ● Product Size: (M) Height: 165-175cm Chest: 88-96cm Waist: 76-84cm ● Outer Fabric: 70% Acrylic, 30% Wool ● Middle Fabric: 100% Nylon ● Inner Fabric: 80% Polyvinyl Chloride, 20% Acrylic (Danlon) ● Color: Navy ● Production: Made in Japan ● Manufacturer's Suggested Retail Price: ¥12,100