A light summer linen suit made up of a short haori kimono and wide elastic-waist pants with pleats at the waist that form elegant folds.
Kimono
Pants
Kimono

Pants

Hand wash in soapy water or with detergent at a temperature no higher than 30 °C.
Use fabric softener — it will make ironing easier.
Wring the kimono out, smooth it well (so it regains its original shape) and hang it on a hanger. Let it dry naturally, away from direct sunlight.
Ironing is fine — just be gentle.