Before ordering them, you should know this: Boots elasticity is nowhere near what you are used to with a Merrell. They are Romanian made, not Chinese, that's a good thing. Insoles are useless. After an 11 km mountain trek last weekend, they stood firm all the way, but I begged God the trek come to an end. Underneath my both feet are sore due to the stiffness of the boots. I have never felt this way before although I trekked and climbed much longer routes. Size-wise I wear 10-10.5 in trekking, backpacking boots, 11-11.5 in mountaineering boots. I ordered 10.5 they were perfect fit, toe space is there even with a thick pair of hiking socks. Good luck in you preference.