PRODUCTS FEATURES: 1. High quality materials with good workmanship from the strong stitching to the functional pockets, sturdy and comfortable fabric. 2. Multi-pocket design with velcro or zipper closures to secure your items and other D-ring clips to clip important items onto. It not only carries more than most purses, but everything can be organized for easy to get. 3. Perfect for many needs, occupations, recreational activities, like fishing , travel, safari, hunting, medical, hiking, climbing, photography and other outdoor work. 4. Practical vest for all seasons: adds warmth without bulk of sleeves, to add to a T-shirt in warmer weather and for layering clothing, good layout concept does not restrict your movement. How To Choose Size: 1. Look at the Size Chart in the detail picture. The values are the measurements of the vest itself, not our body. 2. Check the "Chest" on the Size Chart, measure your chest circumference, then choose a "Chest" value from the Size Chart, which should be at least 3-4 inches larger than your own chest. 3. Based on the "Chest" value in the second step, check the corresponding "Length" and "Shoulder", compare your Height and Weight, confirm if the size you have chosen is good. For example: If you are Standard body shape, and Your Chest 40", recommend vest size: Small (fit). Your Chest 42", recommend Medium (fit) or Large (slightly large). Your Chest 44", recommend Large (fit) or XL (slightly large). Your Chest 48", recommend XXL (fit). Your Chest 50", recommend 3XL (fit) or 4XL (loose fit). Your Chest 56", recommend 6XL (fit) or 7XL (slightly large). If you are a plus size man or have a beer belly, please choose the size based on the larger value of your chest and waist, and choose the larger one between two similar suitable sizes.