Banana Republic Flannel Long Sleeve (Blue/Orange) Large (runs small)

Like new Banana Republic long sleeve flannel shirt in dark blue and radiant red/orange. I purchased this to wear with my hat but it was too small. The size is more of a medium than a large. Large is usually 22" to 23" armpit to armpit; this is 21" Condition: Like New Size: Large (runs small see measurements) Armpit to armpit: 21" Shirt Length: 30" Material: 100% Cotton