Really can't go wrong.
These boots are medium width, so you can get away with them if you have a wider foot with no problem. Length-wise, they are true to size as well, so just look at the sizing chart to figure out your UK to US conversion.
I keep saying this about Salomon boots, and this year they seem to have taken a step forward with this problem with the Pledge, but Salomons have this issue that they literally manufacture into their boots where snow gets lodged in on either side of the lacing system, between the laces and the tongue. These ones are a little better than normal because the lacing system lies flatter to the tongue, but in years past the Pledge has suffered from the effects of this problem.
Salomon gives these a 7 out of 10 in their stiffness rating; however, I think they're a little softer than that. And if you ride more than a few weeks a year, you'll definitely see that the stiffness they build into these breaks in very quickly. They're a fine boot to hike in or hit the park/pipe with confidence. Send 'er!