Amazon takes up to 69% off a selection of Trailmaker kids' backpacks, with deals starting from $7.70. Plus, Prime members bag free shipping on all orders. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping starts around $5.) A couple of best bets:
Vera Bradley via eBay offers the Vera Bradley Women's Large Duffel Travel Bag in nine styles La Neon Rose for $48.99 with free shipping. That's a buck under our May mention and the lowest total price we could find by $11. It features a 15" strap drop and exterior end pocket.