These blue KJUS Formula ski trousers are crafted from a durable, four-way stretch, waterproof and windproof Schoeller-Dynatec material with KJUS FAST Thermo Core insulation. Cut for a relaxed fit, they feature an adjustable waistband, dual button and concealed fly fastening, jacket-to-trousers connecting system, zipped side pockets, articulated knees for an ergonomic fit, microfleece knee inserts and contrast panelling at the cuffs. Although we didn't excel at chemistry, we do know that adding these KJUS trousers to your ski kit is the best Formula for success.