green blouse with Adorable screen-print giraffes. Short sleeves

This is super cute but I don’t know much about it. Not sure of what fabric this is. It is a nice olive color and has a wee bit of stretch. It has a slight naturally wrinkly look that resembles linen but I don’t think it is linen. Please see pics and ask any questions you may have Measurements flat lay Shoulder to shoulder. About 16 inches Pit to pit. About 22 inches Back of neck to bottom hem. About 24 inches