Clear Sling bag made of extra durable cold-resistant and nontoxic PVC plastic and bound with high-quality stitching. This sturdy sling backpack features fabric specifically designed for daily use.Sturdy, Lightweight but with a lot of storage spaces. The chest bag is very convenient when you go hiking, traveling.With adjustable and breathable strap,the breathable mesh strap provides fresh and comfortable experience for your shoulder, you can adjust the length according to your needs, the strap and chest bag can be totally extend to 51.6 inches, perfectly fit your body.