Business casual light and airy blouse from The Limited. 
Dark, almost black, blue colour, patterned with a moon-like pattern and small light dots. 
 
(I thought it was a very very dark blue, my husband thinks it is black...one of those...)

Size: M
Shoulder: 14"
Arm length: 24"
Arm opening: 9" at the arm pit / 4.5" at the end
Chest/Bust: 19.5"
Width: 20"
Length: 27"
 
Please do note that colours vary depending on monitor types and settings.