1. Fabric: 1200D (Optional) 2. Lining: 170D 3. Inner trolley system with pressing button 4. Welcome OEM 5. Newly designs 1. Fabric:1200D (Optional)2. EVA Foam in front panel3. Inner trolley system with pressing button4. Plastic wheels with good material run smoothly.5. 170D full lining inside with one mesh 3# zipper pocket 6. 3.5" expandable section offering more packing capacity7. Two durable ...