rebetico, I should have W3 in a couple of days. I'll post how they measure up sizewise...and, yes, Triple Fi have quite a large housing but don't let that put you off. The 'bulb' in the housing does not go into your ear, lol! And you can wear them two ways: stock or flipped. But we can cover that once a size comparison is done...what do you need? Length, width, bore size? The bore size (of the sound tube, for want of a more correct term) is pretty large on Triple Fi but with the smallest tips, fine. If of course you're one of the many lucky ones who don't have an issue with fit...