Built for the jobsite, office, or even when you’ve called it a day, our flame-resistant button down shirts are a work-week essential. With quality construction and the safety features you need, they keep you protected in tough environments. FR Sierra Work Shirt Product Features : Greater Arm Mobility™ lets you move freely, Button-front closureAdjustable cuffs, Left chest pocket with hidden penpencil slot Men's Flame-Resistant Sierra Work Shirt in Glacier Blue, Size: Small by Ariat