Updated for spring 16, prAna introduced numeric waist sizes to ensure you'll find the best fit inbest selling pants. The prAna Stretch zion pant has understated everyday style to go with performance ability for weeks in the wilderness. Stretch fabric is quick drying and resists water, abrasion, and wrinkles. Roll-up leg snaps, a cinch belt system, and a ventilated free-range gusset are ready for rock climbing. 97% nylon and 3% spandex. Upf 50+ rating. Standard fit. 36 inseam available in Charcoal and Dark Khaki. Material: Nylon, Spandex.