Women's size medium (based on measurements; no size tag - see below for measurements)

Out seams on the side - very cool

Sleeveless knit tank dress by Sonia Rykiel, Paris

Made in France

White bird pattern on navy blue background

Boat neck round front neckline

V-neckline in the back

Knee length

Pullover

Light sweater knit fabric, comfortable for all seasons with or without layers
No tag showing fiber content, feels like a cotton or cotton blend

Embroidered initials "SR" for Sonia Rykiel on the left side of chest - navy blue thread, not very visible
Back slit about 6.5" high

This dress is in very good condition with no flaws of note - I have not tried to wash it, but it probably could be hand washed in cool water, and laid flat to dry - fantastic 1980s vintage style from Sonia Rykiel

Measurements (taken flat):

Pit to pit 18"

Waist 16.5"
Bottom hem 22"

Dress length from shoulder to bottom hem 42"

Label appears to be from the 1980s