What is a men’s suit? Historically men’s suits have their origins in Britain of the 19th century. However, this menswear garment indeed changed a lot from its conception up to nowadays. What is a men’s suit? Historically men’s suits have their origins in Britain of the 19th century. However, this menswear garment indeed changed a lot from its conception up to nowadays. What is a men’s suit? Historically men’s suits have their origins in Britain of the 19th century. However, this menswear garment indeed changed a lot from its conception up to nowadays. What is a men’s suit? Historically men’s suits have their origins in Britain of the 19th century. However, this menswear garment indeed changed a lot from its conception up to nowadays.