 | Mens prAna Westbrook Flannel Shirt - Cavern. Slim-standard-fit button-down flannel in 100% recycled materials blend with a washed finish for premium softness. The Westbrook Flannel Shirt is a slim-straight-fit button-down with warmth that elevates your casual outfits. It’s made from 100% recycled materials with a medium weight and a washed finish for a lived-in feel from the first wear. Patch chest pockets and a hidden security pocket at the hem offer hands-free storage for your small essentials. | Mens prAna Westbrook Flannel Shirt in ,... - Mens prAna Westbrook Flannel Shirt - Cavern. |