Dalbello Boss has a 105mm width, with 103mm liner width. I bought the blenders a couple years ago at 103mm width, which is pretty much the same boot, because I have crazy bone growths on my feet and they've been the best boots I've ever had. I'd highly suggest Dalbello.
Here is a link to the Boss: http://www.dalbello.it/us/product-boss_i_d-211