Umm . . .you put it on over your head with your arms in the sleeves, black side out. Arrange you tripod mounted camera and rough focus (extend bellows). Now pull the waist band or the t-shirt over your head to encompass the rear standard. The T-shirt composit is now white-side-out. Cinch the cord and use the loop. You may need to re3move one one or both hands to manipulate the camera controls.

I recall seeing an ad many years ago for a manufgactured product that worked that weay . . .they even caslled it a :jacket:.