BoardingBlue Soft Personal Item 17" Under Seat Duffel for Delta Sun Country Alaska Virgin Airlines Fits Alaska Airlines, Wow, Sun Contry, Delta Airlines Bag Size: 17" x 13" x 9" Under Seat Bag with pocket, bottle holder, comfortable carrying strap. Friendly Reminder: Please Do NOT Pack Too Much. Or It may cause the bag oversized. Capacity:1989 cb.in. which can be packed more than you think.