Our range of harnesses includes the super-light but not so comfortable and the super-comfortable but not so light. We also have everything in between.
You may notice that some harnesses come with adjustable leg loops, whereas others don't. Adjustable leg loops are particularly useful if you're going to have to put extra clothing on or get your leg loops over big boots or crampons. However, if this is not the case then they are probably not worth the hassle.