First things first, let me give credit where credit is due. Here is the link to the tutorial I followed: Infinity Dress Tutorial
I then found a blog which also covers this tutorial, with some additional helpful information thrown in: Blog of Tutorial
Here is a picture of the dress I made in ONE hour!
And here's how you do it!
Find yourself some nice, stretchy fabric. At least 40% stretch is recommended.
You will need four pieces to make this dress. A circle for the skirt, two loooooong pieces for the straps, and a strip for the waist band.
Circle: Measure your waist and divide this number by 6.28. (Read about it in the original tute) Now determine the length you want the skirt part to be. Add the two numbers. Now create a pattern piece for your skirt. You will probably need to create a half circle pattern piece, then either fold your fabric double to create a circle, or cut two half-circles (if you are tall or have fabric that is not wide enough) and sew them together. So.... make one of these:
The small cut out is the waist of your skirt. Take the first measurement number you came up with, your waist measurement divided by 6.28. Using a string the same length as that number and a pen(cil), draw an arc. Then measure another string the length of your skirt PLUS the number you came up with for the waist. Measure from the same starting point on the material (which, by the way, can be interfacing, poster board, cardboard, whatever you can come up with!) and draw another arc. Cut on both lines, and you will have created the pattern piece for your skirt.
Straps: You will want the pieces to be 1 1/2 times your height (yeah, really!) The width will be the measurement from the middle of your rib cage to beneath your under arm. Yep, these are LONG pieces.
Waistband: The waistband should be about 2" long by the measurement of your waist. You'll want to measure it so that the stretchiest direction of the fabric goes around your waist. Know what I mean?
Ok. Now lay the skirt piece with the WRONG side UP. You'll be stitching on the inside. You will lay your two strap pieces with RIGHT sides UP. Overlap the strap pieces on one end by about 3-4". The raw edges of the straps will go right up against the raw edge of the waist.
Now, take the waist band piece and fold it in half lengthwise. This part has confused a lot of people, so please take note. The waist band will not be seen when the dress is completed. It is stitched to the INSIDE of the waist, mostly for structural integrity. This part might seem odd, but it works. Have faith! Starting where the two straps overlap, place the raw edges of the waistband piece along with the raw edges of the waist and strap edges. You will have five layers of fabric at the starting point. Stitch the waist band all the way around the waist, overlap just a little bit when you get back to your starting point, and finish.
Flip your dress right side out...
...and try it on! There are a few ways to wrap the straps. Go to the two links above for ideas.
And now...take a bow!