Amazon offers Prime members the Samsonite Tote-A-Ton Duffel in four colors (Red pictured) for $19.99 with free shipping. (Non-members can spend $35 to bag free shipping; otherwise, it adds $6.48. J.S. Trading Co. charges the same.) That's the lowest total price we could find by $10, although we saw it for $2 less last summer. It features 6,400 cubic inches of packing space.