well do you want a lang 30? or how about a technica 30? maybe a Nordica 30? or salomon 30? or Dalabello 30, THEY ARE ALL DIFFERENT AND ONLY 1 OR 2 WILL FIT YOUR FOOT RIGHT. and even withen brands there are different shapes, and if you choose the wrong one your feet will hurt so fucking bad, and also how do you know you need a 30? you probably want a 28 or a 29.
And if you would like information on which boots you should buy ask these people: