A tube top is considered to be a strapless top gathered in small rows with elastic. A tube top dress is one of the easiest dresses to sew since there is no shaping. It can be done in less than an hour by even the most novice sewer. It is very inexpensive to make and you can use many different kinds of fabrics to make it. The dress is versatile and comfortable to wear. It can be worn it as a sundress or even a bathing suit cover-up.
Measure yourself around the bust with the measuring tape. Measure yourself from your armpit to 3 inches below your knee with the measuring tape.
Cut two rectangles out of the fabric with the scissors, your bust measurement plus 1 inch for the width and your armpit to knee measurement for the length.
Place one rectangle on top of the other with right sides facing each other and pin together.
Sew the rectangles together along one of the side seams with regular thread at a 1/2-inch seam allowance on the sewing machine.
Fold the top and bottom edges of the dress under 1/2-inch, wrong sides facing each other, and sew in place on the sewing machine using a regular thread.
Wind the elastic thread around a sewing machine bobbin. Place the bobbin into your sewing machine. Continue to use regular thread for the top thread. Set your machine to the longest stitch length.
Place the fabric on the sewing machine right side facing up. Sew across the top of the dress 1/2 inch from the edge with a straight stitch. Sew another row 1/2 inch below the first all the way across using your presser foot as a guide. Continue to sew rows 1/2 inch apart until you have 20 rows total. Make sure you back stitch at the beginning of all of the rows or the elastic will pull out.
Place the regular thread bobbin back in the sewing machine and shorten the stitch length. Fold the fabric with right sides facing each other, matching the two open sides of the dress. Sew the sides together at a 1/2 inch seam allowance.