Features: Material: This sling backpack is made of premium high-density oxford fabric, scratch resistant, wear-resistant, durable. Breathable mesh on the back and decompression strap keeps it heat dissipation, ventilation and relieves the stress of your shoulder. Anti-theft: Dual-access lockable zippers of the main compartment increases safety to protects your valuable belongings. Waterproof: The high density material oxford fabric keeps your sling backpack waterproof and wear-resistant. USB Charging Port Design: With built in USB charger outside, it& 39;s very convenient to charge your phone while walking. Quality Assurance: Our product will definitely win your heart with its premium quality If you have any inquiries, please contact us. Specifications: Material: Oxford Size: 34*20*12cm 1 * Sling Backpack