Dayshift Flannel Jacket in Black Harry Potter 4k Poster Wallpapers Wallpaper Cave. The RVCA Mens Dayshift Flannel Jacket in Black blends classic flannel vibes with the warmth of a midweight jacket perfect for cooler days and laidback layering. Part of the Dayshift Collection, a modern take on timeless workwear made for the streets and beyond, this jacket is crafted from a brushed flannel blend of polyester and wool for a soft, cosy feel with lasting durability. Designed in a regular fit, its easy to wear over your go to tee or hoodie. With its clean lines and everyday comfort, the Dayshift Flannel Jacket is ready for whatever the day brings.