you must be a braver soul than me, because I NEVER go sleeveless! So even in the summer, I'll be able to put the armband high enough up on my arm to be covered by a short sleeve shirt.
If I ever lost enough weight (and it would probably also require surgery) to look good in something sleeveless, I'd wear the GWF proudly and be happy to explain what it is. But since that is pretty much never going to happen, I don't need to really worry about it! lol!