This wheeled backpack is made of durable water‑resistant woven fabric. It adopts precise stitching, reinforced stress‑point craftsmanship and heavy‑duty smooth zippers. Built‑in retractable trolley handle and silent spinner wheels. Multi‑layer divided storage pockets with adjustable compression buckles. Dual‑use design for rolling or backpack carrying. Wear‑resistant and practical for business trips and travel.