Description Especially for the warmer months and the preferred trouser for pilots in Southern Europe. This is the same quality 3 ply fabric as styles FF99 & LT99. The main difference being a larger percentage of Wool and a 20% reduction in weight. This new fabric composition allows the trouser to breath easily but is still machine washable and easy to maintain. We began trials of this new trouser in 2023 and it has now become our premium selling trouser.