Strap fixed 2.500D composite nylon hemming 3. Shoulder width Velcro adjustment 4. Velcro adjustable shoulder straps 5.Elastic elastic arm strap 6. Material Nail: 304 stainless steel Hemming: 500D composite Notice: The nail can be wiped and maintained with lubricating oil. Each layer on the back has knots, please do not untie it. Or, you can choose to get a replacement. Our goal is to ensure a happy shopping experience with us. This item is in the category "Sporting Goods\Tactical & Duty Gear\Chest Rigs & Tactical Vests". The seller is "factory*direct*store" and is located in this country: CN. This item can be shipped worldwide.