I'm selling this item because I only used it once and it wasn't what I expected. I intended to use it for a long time, so I threw away the packaging. Size is S/M. Finetrack Dry Layer Warm Balaclava Unisex (FUU0521) / Face mask, balaclava, inner layer, cold protection, heat retention, antibacterial and deodorizing, water repellent, mountaineering, snow mountain