The Gryson is a brushed long sleeve flannel, designed for everyday warmth around mountain towns, campsites, and in cities where comfortable checkers are always in style. It's made with Pulaski™ polyester flannel that's been brushed for warmth and softness. Arc'teryx equipped the Gryson flannel with hidden snaps along the front placket, and two flapped chest pockets that secure with buttons. This shirts' modern style and articulated fit give it the comfort, mobility, and looks for afternoon rides around the lake and evening patio sessions with old friends. Durable long sleeve flannel for everyday life Articulated patterning provides Two chest pockets secure with snap flaps Center placket closes with hidden snaps Regular fit for comfort Like new, very soft, fits slightly larger than most Arc'teryx pieces in small to allow for a base layer. This fits closer to a medium in my experience.