44
I'm the same size as you and have two pair of Achilles both in 44. If you're the type of person who has to have their sneaker fit really snug with their toe all the way at the end then a 44 might not work, but if you're going for comfort and don't want to walk around with hurting feet all day stay with 44. You're going to have a bit of toe room but they're not going to be flopping off.