Based on our most popular vest the Wild Hare Heatwave mesh vest, we added genuine leather to the shooting pad and trim providing extra durability, comfort and breathability. While the mesh body allows for excellent air flow and reduced weight during hot days at the range. Additional features include: 1. Large gusseted double pockets easily hold a box of shells 2. Internal shoulder pocket accept ShockEater recoil pad (sold separately) 3. Rear velcro straps give a perfect tailored appearance everytime 4. Rear hull pouch with 2-way YKK zipper for easy cleanout 5. Internal zippered accessories pocket (on off side) 6. Large 2-way YKK main zipper 7. Fabric loops on the back to attach your competition bib number without damaging your vest 8. Plenty of room on back shoulders and above breast pocket for personalization 9. Lifetime Guarantee against premature failure of materials, hardware and construction True AMERICAN Men's Sizing. Chest measurements at the armpit (inches): Small - 34-36" Medium - 38-40" Large - 42-44" XLarge - 46-48" 2XL - 50-52" 3XL - 54-56" 4XL - 58-60" 5XL - 62-64"