Yukata is a Summer Kimono.
It is comfortable for hot weather because Yukatas are made of cotton which is a thin fabric.
They are also great gifts to give to your friends!
If your Yukata doesn't fit well, then you can always re-adjust it with a Koshi-himo (waist band).
On the other hand, if it does fit well, you can style it as a long, loose cardigan.