Thank you for viewing. [Product Information] This is thick underwear designed for wear in extremely cold regions, with an emphasis on heat retention. It employs a box structure that connects a smooth outer layer and a soft inner layer with partitions. The fluffy air layer prevents warmth from escaping, achieving high insulation. The smooth surface and excellent stretchability make it comfortable for layering. [Material] Geoline® [100% Polyester] [Average Weight] 124g [Color] Black (BK) [Size] 135 (125-140cm) [Features] Spiral Slantec® Cuffs / Flat Seams / Front Opening Used once for mountain climbing. There is a slight abrasion on the back, though it's barely noticeable. Please check the last photo. Price is not negotiable. Please understand that this is a used item worn by a child before purchasing. If you have any other questions, please feel free to comment.