Breakout Backpack(Heavy Gear Hiking)

Designed for heavy-duty hiking, fabric: high-density nylon, water-repellent and tear-resistant lining: polyester, mesh bag: polyester, rain cover: polyester fabric, buckles: YKK, zipper: YKK, webbing: nylon webbing, independent bag compartment on the top, trekking pole hanging points on both sides of the front, zipper opening on the right directly into the main bag, Velcro-style height-adjustable backrest, breathable backrest, length-adjustable waist piece with waist bag, bottom rain cover pocket, center reinforced aluminum support, survival whistle chest buckle, left and right adjustable waist belt.