A tipper - which tips onto 2 wheels - gives you more active control in tight spots or on bumpier terrain since you're pulling rather than just guiding it (like you would a spinner). These wheels are rubber-rich with a large circumference enhancing agility and impact resistance. Our testing approach is to find all of the stress points and simulate years' worth of wear on those spots. To ensure they're adequately reinforced and robust enough for lots of travel to come. Soft goods are our speciality and we have incorporated our much-loved approach to access and organization here pairing a large drop-in zone with in-built packing cells for smaller items.