The key to any pants is getting the right fit. Took me about 6-8 pairs to find that fit. Unfortuantaly only a few brands make short sizes, not that 5'8" is really short but I guess by European standards it is. Once I tried these in the Short size then we were in business. Fit can be customized with the Velcro waist and let adjustments, nice to have the multiple liners but have yet to have any use for them so far. Airflow is not very noticeable but I guess with a heavier pair of pants you may feel a difference. With all the armor in these they are a little heavy though. Only issue is that the hip armor could be better, seems a bit flimsy. Knee armour is better than expected, its a flexible rubber material and not just a plastic cap over some minimal foam. Regardless I purchased a set of ICON D3 armor for hip and knee as replacement. Overall a real nice set of pants.