The prAna Brenna Pant makes skinny comfortable thanks to stretch nylon and spandex. Heavy stitch detailing accents its moto style. The brenna is bluesign approved for environmentally safe production processes. Nylon strech woven. Moto style 5 pocket silhouette. Heavy stitch details at legs and back pocket.. UPF 50+. Size 4 = 30 (76.2cm) inseam. Fitted. Mid Rise. Skinny Leg. 94% Nylon and 6% Spandex. Material: Nylon, Spandex.