According to the product description, the tri-flanges are gone, but it still says they have a blue foam tip...
Edit: How about the dB Logic EP-100? they are only $15 now, so they could be a pretty simple impulse buy. They have a 3.5 in isolation and a 4.5 in comfort, plus they are small so that works well with my ears.. A pack of Shure Olives would also do some good.
Edit2: Can you wear those facing down?
Edit3: A few reviews are saying these can't block out anything... Why would they say that? I think they don't know what they're talking about :P
Edit4: Ended up getting them in blue.
They are best worn over-the-ear although I think you can wear them down if your ears are small. You'll want the Olives as well (either small or medium) because the stock tips are deep insertion and not something I'd recommend for sensitive canals.