Columbia Evapouration Jacket 100% Nylon This award-winning mens rain jacket features a rich woven fabric and clean, versatile styling that easily navigates from city to wilderness, while a performance blend of waterproof breathability and accelerated wicking technology keeps you dry and comfortable on both the exterior and interior The EvaPOURations underarm vents deliver adjustable breathability, and it packs down into its own pocket for easy stowing Omni-Wick EVAP advanced evaporation Modern Classic Fit Shell: 100% nylon