M size, recommended weight 40-50Kg L size, recommended weight 50-57.5Kg XL size, recommended weight 57.5-65Kg XXL size, recommended weight 65-72.5Kg 3XL size, recommended weight 72.5-80Kg 4XL size, recommended weight 80-87.5Kg 5XL size, recommended weight 87.5-95Kg The above data is derived from buyer feedback and integration, and is for reference only. Timeless is what this shirt is all about. It's cut from classic cotton-blend, accented with subtle graphic details, and finished with a neat button-down collar. Thanks to its relaxed silhouette, it is perfect to layer with your basic tees.