Men's fleece-lined and thickened warm thermal underwear set (wool and silk, long sleeve, trousers, autumn-winter)

This is a men's thermal underwear set made of wool and silk, warm and heat-retaining. It is designed for the autumn-winter season and features fleece-lined and thickened fabric. The set includes a long-sleeve crew neck long-sleeve base top and trousers. The fabric is solid colour and has heat retention and heat generation properties.