evo.com | Flylow Button-Downs > Let's be honest, if you already own an insulated flannel like the Flylow Sinclair Insulated Flannel, then you already know the tendency to wear it everyday... If you don't own a piece like this, let us just warn you that the Flylow Sinclair Insulated Flannel will soon be that daily driver that you reach for everyday. Consider yourself warned. 40g Spaceloft(TM) Insulation Regular Fit 1 External Chest Pocket Duraflex Snap Metal Buttons 100% Polyester Flannel | Flylow Sinclair Insulated Men's 2023 - 2X-Large Yellow | Polyester