This is your typical "Ren faire" or "Medieval faire" look. These costumes are fun to wear but there's nothing even remoltly period about them. Until the late 16th century (Elizabethan era), no costume, peasant, middle-class or noble was ever seen in two separate pieces. A waist seam has been present on 12th century bliauts, 14th and 15th century kirtles and cottehardies and of course on sideless surcoats starting in the 13th century but NEVER were the bodice and skirt separated until the apparition of corsets and 16th century doublet for women. Than, in the beginning of the 17th century, the little front-laced & sleeveless bodice made it's entry. But it wasn't made of leather or suede and certainly didn't have grommets all over. Wool, linen and later cotton is more like it and it was meant as an undergarment not an outer garment for every day wear. It was worn on its own only for choirs and such in private, while in the company of visitors sleeves would have been attached to it in order to apear more "decent".
So, knowing all these facts, please enjoy these fun "Hollywood" fantasy costumes :)