This is a summer kimono ("yukata"). These have small holes/gaps that allow more airflow than unlined kimonos ("hitoe"), or the fabric itself is woven to be more breathable.

Width: 133cm (52")
Length: 144cm (56.5")
Sleeves (top to bottom): 47cm (18.5")
Armpit to Armpit (back): 60cm (23.5")
Chest (along the back fold): 113cm (44.5")

Age:
1990s

Fabric Quality:
Cotton, lightly textured, slightly stiff
C - Storage staining, mostly on the upper half, focused on the edges and sleeves. Random use stains and color bleeding, such as on the lower back and sleeves.

Cleaning:
Hand wash in cold water with delicate soap.
Air outside on a dry day a couple times a year.

Quality Rank (Outer Fabric):
S = Near Mint Condition, No signs of aging, staining, or wear.
A = A very small amount of staining or aging can be seen, such as one or two age spots.
B = Signs of use and a few small stains or many tiny stains (such as dots from aging).
C = Stains are easy to spot, large, and/or numerous, and may contrast heavily with the fabric.
D = Holes or very large stains. Significant signs of aging and use may also be seen.
E = Salvage only.