No way that this is only visible through flash photo. If wearing a light colored shirt (which I assume will be the case), you will clearly see it through the sleeves open weave because it's in direct contact at all times. It may not look exactly like those pictures but it will look either like a strange sheen in low light, or a contrast (like those pics) in direct natural/artificial light. I know, I've been there - it is very noticeable. Of course, if you do this for a light colored suit (e.g. light grey), it won't be as much of an issue. Anyhow... you've been warned
