Just received these boots, and was highly disappointed. I read that they had good venting, but they have ZERO venting. Just re-read FC Moto description, and it doesn't mention any venting, so not their fault. Not sure where the heck I read that. Anyway, even in my cool house, they felt swampy. Also very disappointed at the materials, with the top of the boot material already unraveling. The size is spot on, at least with the 46, which is equivalent of my US 12. All materials look cheap, plus they're not comfortable, so unless you just cannot spend more than $90 on boots, save your money for something nicer. I'd have to pay for shipping them back, which would cost close to what I paid for them, so will just give them away, and buy something in the US, even if more expensive, as I'd be able to return them way cheaper. Lesson learned. At least the 2 pairs of Held gloves I ordered fit fine, so 'just' threw away like $120 (with shipping), rather than $411. Oh well.