I recently got a new pair of the skidoo boots. Something like tec they are called I think. I wasn't even thinking about buying them was going to go a boa system like klim or motorfist. I tried on the motofist and instantely didn't like them. Tried on the skidoo boots not expecting to like them but since they were there I would give them a go but I totally liked how they felt. They don't feel huge even though I am a size 13 and after 4 rides they keep me warm. The laces are also really easy to use unlike my last pair of klims which is why I was thinking boa. I actually didn't like the boa system when I tried them though and I thought for sure I would.
Key is to have some room left in the boots. You don't want a tight fit cause it makes your feet colder.