These are very comfortable and lightweight.  I'm using them for crossfit right now and seem to provide adequate protection and cushioning for all crossfit activities that I engage in.  If you are heavy into deadlifts and squats with a lot of weight then you may want to opt for more support.  I usually stay below 225lbs on my crossfit deadlift exercises.  My only suggestion to Inov is that they need to make the shoelaces longer.  I have a very high arch and I struggle to tie a proper bow in the shoelaces.