To make your own pair of stretch tabi using Saiya-chan's pattern, simply cut out your stretchy fabric (reverse the pattern for the other foot) and sew the pieces together (inside out) matching up the letters on the pattern pieces. I used a zigzag stitch on my sewing machine, but you can also sew the tabi by hand.
Unlined tabi, made using Saiya-chan's pattern:
Now, if you would like to make stretch tabi that are lined, it takes a few extra steps. The lining gives some extra thickness and stability, especially if the fabric you use is very thin. Here is my tutorial on making lined stretch tabi using Saiya-chan's tabi pattern:
Step 1, Cut out your fabric.
Reverse the pattern for the other foot.
The tabi soles are also jersey cotton, but I used 3 layers of fabric to give the soles cushioning thickness.
Step 2, baste the soles together.
Pin the three layers of fabric for the sole together so that they do not separate. Stitch around the outside of the sole to bond the layers together. You can use whatever sort of stitch you prefer for this, such as hand basting, machine basting stitch. I used a zigzag stitch around the very edge of the fabric.
Step 3, Sew together the center seam of the top of the tabi (point B on the pattern)
Step 4, Sew the heels (point C on the pattern)
Sorry, I don't have a picture for this step. With right sides together still, sew up the back of the heel of each of the tabi and lining pieces.
Step 5, Attach the lining to the tabi body.
Turn the tabi body right-side out and carefully insert the lining into the tabi body. Line up the toes and pin around the edges. Baste around the edge to bond the tabi and lining pieces. I basted by hand this time.
Step 6, Attach the sole.
Pin the sole to the body of the tabi, starting from the heel. Use plenty of pins around the toes. The toes are wider on the body piece than the sole, however everything should line up if you focus on keeping the edges even. Again, I used a zigzag stitch.
Step 7, Sew the ankle opening (point A on the pattern).
To cut down on bulk around the ankle, I trimmed the lining a little bit.
Fold the top of the ankle twice and pin it down.
You can sew it however you wish. I used a zigzag stitch again for this. It can be seen on the outside of the tabi, however a zigzag stitch is less likely to break when the tabi is stretched while inserting your foot. You may add a piece of elastic in the ankle opening if you want, but I don't see the need for it.
Done! Turn the tabi right-side out, and you are finished!
The color on these photos didn't turn out right. The tabi are gold colored and shiny.
This is the true color: