【SAVE $60-$80 PER FLIGHT CARRY ON CHARGES 】 –– Our bag Size 17 x 10 x 8 inch, perfect fit personal item size 17 x 10 x 8 inch limit of United airline and Jet Blue. It can be easily placed under seat to save your carry on charge around $40-$60 per flight. 【Durable DUFFLE】–– It extends to 17x10x9 inches, It can fold up to a small bag, you can easily store it anywhere convenient. 【WATER RESISTENT FABRIC】–– Made of water-resistant fabric to protect your gears well from rain or wet. 【FREE FOLDABLE PILLOW】— our bag not only save the real money from your pocket, but also come with free pillow, protect the neck when you are sitting in the airplane, car, train, or bus. 【USB Charging Port】 — The setting of USB charging port is user-friendly and is convenient for you to charge your phone without opening the sports duffel bag on the way. 【CONVENIENT UNDERSEAT STORAGE】-- With its carefully crafted size, this travel bag is ideal for stowing underneath the seat in front of you, providing easy access to your essentials during the flight. 17” personal item under seat duffel bag with bonus for United Airlines (Royal Blue) Within the size 17”10”9”