This is a flagship jacket from Mazume. I've used it for 4 months. I haven't worn the pants much at all. The jacket is also relatively clean. Please refer to the photos. It's incredibly warm; you can wear just a short-sleeved shirt underneath even in temperatures of -5 degrees Celsius. The original price was around 30,000 yen, so I think this is a great deal. About this product: The material uses waterproof and breathable "RAY-TEX". The lining uses short-pile fleece. The waist has a storm guard to prevent cold wind from entering and improve cold protection. The cuffs have a double-sleeve structure using neoprene material, which prevents the warm air inside the jacket from escaping, dramatically increasing the heat retention effect. The pants are a salopette type that combines high heat retention and prevents slippage (the salopette part can be removed depending on the situation).