Printed cotton voile sarong with finished dimensions of 71" (1.8 m) by 39" (1 m).
It's just one big rectangle, no instructions necessary--but I'll bore you with some anyway. Sarongs typically measure about 72" (1.8 m) long by 36" (91 cm) wide, although widths range up to 45" (1.1 m) or so. You'll need some lightweight woven fabric, like cotton voile or silk chiffon. Cut the fabric as shown in Diagram 1.
Hem the sarong by folding each raw edge 0.25" (6 mm) to the wrong side twice and sewing along the inside hem edge. See Diagram 2. If you are sewing with silk chiffon and/or using a rolled hem presser foot, you can sew a narrower 0.125" (3 mm) hem.
Now, learn more ways to wear it than you ever needed to know with this video.