Pull on, low profile waist with an internal drawcord designed to reduce bulk and layer well with clothes and packs | Fortius DW 1.0 fabric is a lightweight 4-way-stretch durable double weave | Two zippered mesh-backed and flapped thigh pockets | Articulated knees for freedom of movement | Gusseted crotch for comfort and freedom of movement | Provides sun protection, UPF 50+