ZUCA Sport Rolling Suitcase -SK8 Sport Insert Bag and Your Choice of Frame The Zuca SK8 Sport Insert Bag: Oodles of doodles make this pattern a Gr8 way to break the ice (figuratively speaking). Choose your Sport Frame: Inspired by aerospace technology, the aluminum alloy frame is light, super strong and rated to safely support up to 300 lbs. The dual wheel system climbs stairs and curbs with ease. The magneto dynamic 4" polyurethane wheels absorb shock and make for a seriously silent ride The removable, hand washable, SK8 Insert Bag is made from premium water resistant 600D polyester The Sport Frame comes with a 39.5" Telescoping handle, and a gear platform to carry additional loads.