BAGSMART For Spirit Airlines Personal Item Bag, Foldable Travel Duffel Bag Tote Weekend Overnight Bag Carry on Luggage for Women and Men Size: M SAVE YOUR CARRY ON CHARGES: Foldable duffle bag sizes: 17.7 x 12.6 x 6.3 inch fits personal item size 18 x 14 x 8 inch of Spirit Airlines & Frontier Airlines perfectly, you can put it under your seat without paying carry-on luggage fees LIGHTWEIGHT & MINI BODY: Capacity is 23L and weight is only 0.97lbs. Simple and easy to fold, folds up to save space when you're not using it FOR FAST TRAVEL: The simple structure is designed to allow you to pack your belongings quickly when you travel. External zippered pocket to safely store small items. This small travel bag is usually suitable for short trips of about 2 days FEATURES: Adjustable shoulder straps + Trolley sleeve + Reinforced webbing + Metal zipper MULTI-PURPOSE: This packable duffel bag is a perfect addition to your luggage collection and works well for quick trips. Not only is it essential for travel, personal bag for air travel. And it can double as a weekender bag, travel tote bag, hospital bag, gym duffle, duffel bag