Original article from here.
How to wear a yukata
The yukata is the popular garment of choice for summer fireworks displays and festivals in general. Much simpler to wear than the kimono in terms of patterns and layering, the yukata is a perfect introduction to traditional Japanese dressing. Let’s have fun in summer with our favorite yukatas.
Note about underclothing and inner layers
The yukata does not require the inner layers needed when wearing a kimono, but wrapping a towel around your waist and hips before putting on the yukata will make it easier to hold the koshihimo and obi in place. As the under-kimono is not to be worn, you can purchase special underclothing for the yukata in place of that. You can also just wear a collar-less camisole instead.
What you need
* Himo (string) [koshihimo (waist string) and munahimo (chest string)] — 1 each
* Datejime (fabric protector) or datemaki (undersash)
How to wear a yukata
Step 1: Firstly, gather the collar of the yukata in your right hand, about 20cm above the collar ends. Hold on to the seam along the back of the yukata with your left hand, at the same height as your right hand.
Step 2: Pull the yukata up to a suitable height off the ground, so that the bottom hem is around your ankles.
Step 3: Wrap the left flap around the front of your body and gauge the point where the flap ends, which should be about 1cm from your right flank.
Step 4: Open up the left flap and wrap the right flap around your body. Pull the right flap up until the corner of the bottom hem is about 7~8cm off the ground.
Note: Lifting the bottom hem 7~8cm off the ground creates a parallel bottom hem along the front of the yukata.
Step 5: Wrap the left flap over the right. When you do this, the cloth along your right flank will loosen, so fold the excess cloth backwards with your fingers, and cover the fold with the left flap.
Step 6: Tie the koshihimo 2~3cm above your hipbone. Fold any excess cloth along your left flank backwards as well, to create a fitted silhouette.
Note: Ensure the the bottom hem of the left flap is about 5cm off the ground.
Step 7: Hold both left and right collars directly in front of you with your right hand, and the back seam with your left hand. Adjust the yukata so that the back seam runs along the center of your back. Then, pull the entire yukata upwards slightly, to leave a small gap between the back of the collar and your neck. Fold the excess cloth down to create a tuck that covers the koshihimo.
Note: Adjust the front collars so that they do not open wide. The flanks of the yukata are kept open in the area under the armpits, so the collar can be easily adjusted. However, do not pull it so tightly closed that it feels uncomfortable.
Step 8: After adjusting the tuck, tie on the munahimo.
Step 9: Smooth out any wrinkles at the back of the yukata to the sides. Smooth the yukata equally to both the right and left sides, so the back seam remains along the centre of your back.
Step 10: Tie on the datejime or datemaki. Ensuring that the collar and tuck are fit and comfortable, place the datejime at the front of your body, wrap to the back and cross, then bring to the front again to tie the knot.