HBO Official Licensed Game of Thrones Lannister Lion T-Shirt (Large) HBO Official Licensed Game of Thrones Lannister Lion Short Sleeve T-Shirt Licensed- Authentic - Men's T-Shirt - 60% Cotton & 40% Polyester Color: Maroon - BRAND NEW Shirt Specific Dimensions (inches) Size Width Length Small 18" 27" Medium 20" 29" Large 22" 31" X-Large 24" 32" 2X-Large 26" 33" 3X-Large 28" 34" Doubling the width measurement will give you the chest size.