Men's Snap Front Denim Vest W/Shirt Collar (Black, XL) Synthetic Please follow size instructions to avoid ordering the wrong size, You need to order minimum 2" inches bigger of what your chest measures, Size Small is a 40" chest, Med. Is a 42" chest and so on each size goes up two inches, for example if you measure 47" or 48" around your chest you will need to order size 3X which is a 50", all sizes in the drop down above has the chest size right next to it 14.5oz 100% Cotton Denim Material Snap Front Closure Two Chest Pockets & Two Lower Hand Pockets Shirt Style Collar