My comfy slip-on right now is ECCO - I have 2 pr (different) slip on sneakers, brown nubuck and black suede. I have a couple pr more minimalist (more like ballet flat than sneaker) from Vionic and fitflop. (vionic actually a ballet flat but has arch padding, LOVE) and the fitflop is closer to a loafer look with a higher vamp. Not sure I can still wear that pair - it's been a couple years of basically wearing nothing but birkenstock, so.....