Zuca SIBO032 Sport Insert Bag Obsidian Black Logo Embroidery in Red White 89055900032 The Obsidian Black Insert is as cool as they come. This is the Insert Bag alone. Build your Zuca with a Sport Frame, sold separately in 9 different colors. The removable ZCA Insert bag is made from premium water resistant 600D polyester and is hand washable. Inspired by aerospace technology, the aluminum alloy frame is light, super strong and rated to safely support up to 300 lbs. 39.5" Telescoping handle. Magneto dynamic 4" polyurethane wheels absorb shock and make for a seriously silent ride. The dual wheel system climbs stairs and curbs with ease