SKILL LEVEL - Confident beginners
FABRIC SUGGESTIONS - Medium weight cotton, sateen or light twill, preferably with a bit of stretch; double crepe; linen; double knit. The sleeveless version would also be great in gabardine, quilting weight cotton, light wool or brocade. 
SUPPLIES
Fabric - 1.8m x 150cm wide (2 yards x 60in) OR 2.4m x 115cm wide (2 5/8 yards x 45in) (less for sleeveless version)
Matching thread
56cm / 22in invisible zip
Iron-on interfacing (about 30cm / 12in, similar weight to your fabric)
Optional: 2 x 2.5cm / 1in buttons for the tab
Optional: 1.2m x 35mm bias binding for sleeveless version (or you can make your own)
Sewing machine and basic tools, incl invisible zip foot