... not fade, and with logo printed, beware of imitation. Zipper: Using high quality nylon fabric, high strength, stretch-proof, hard to twist, ... pressure, well-designed, more durable. Wheels: Using high quality PVC wheels, stainless steel axletree make it more bearing, rolling smoothly, ... . We know that time is the essence of business. Our quality control ensures in-time delivery. We believe serious ...