These trousers are made with high-stretch nylon Thermolite fabric with a DWR finish. This material is brushed on the inside for comfort and provides good insulation for winter adventures. High breathability ensures you don't overheat when hiking through the mountains. When the going gets rough, these trousers are ready with nylon Kevlar® knee patches that provide tear and abrasion resistance. Their durability is balanced by comfort with a pull-on style stretch waistband with adjustable drawcord and fly that makes for a comfortable fit, whether climbing for fun or working on a rescue mission. Finished with zipped hand pockets and a back pocket to keep essentials secured, the men's Vertigo Pants are ready for whatever you throw at them.