Slingsby 3L W Pants Is Our Most Technically Advanced Shell Pants Ever Made! A Durable Yet Lightweight Garment Made From The Highest Performing Materials There Is. Packed With All Those Details, Functions And Features A True Mountaineer Will Appreciate. Slingsby 3L Pants Is Made From Dermizax®Nx Fabric, Providing Maximum Weather Protection And Outstanding Breathability. The Pants Are Customized And Shaped According To Our Innovative Design Concept 3D In Action. This Means That The Different Choices Our Designers Have Made In The Development Of The Product Is Based On Studies Of Athletes Climbing And Scrambling, And Extensive Material Research And Testing. The Result Is Outstanding Fit Deliberately Shaped For Mountaineers, Of Mountaineers.