The Givens stretch flannel work shirt by Dovetail Workwear is made of a custom brushed cotton flannel. With just the right amount of stretch, the shirt allows for comfortable movement without losing shape, Dovetail notes. The shirt features button-secured breast pocket and pencil pocket and button-up adjustable sleeves. Available in ginger and midnight navy in sizes XS-3XL. Dovetail Workwear.