Menace Knickers 38 - Dark Khaki. The prAna Menace Knicker brings a modern streamlined design to climbing knickers. The all-world performance properties of our popular Stretch Zion fabric are enhanced by a wicking finish, free-range gusset, and a cinch-waist belt system. A side zip pocket is more slim than traditional cargo pockets, perfect for stashing keys and then staying out of the way.