The Men’s SENTINEL Long Sleeve Flannel Shirt from Black Diamond is the perfect layer whether you’re rock climbing or heading in town for a for your morning cup of coffee. The soft, organic cotton/hemp blend button-up is a supremely comfortable flannel with style to match. This ultra-comfy herringbone pattern shirt features a classic button front with two chest pockets to keep your passport and other essentials close while travelling. The regular fit features a shaped hem with back pleat for fitted comfort that doesn’t get in the way.