WANDF 24" ~ 36" Foldable Duffle Bag 60L ~ 120L for Travel Gym Sports Lightweight Luggage Duffel 10 Color Choices

Used this as an extra carry-on returning from a trip to the UK. Was perfect to hold all our dirty laundry while we packed our souvenirs into our hard sided carry-ons. The strap is durable, the zipper is strong, and it fit in the overhead bin. Lots of smaller pockets to keep things separated. Packs very small (fairly easily) and is light to toss empty into your luggage heading out on the trip. Great purchase!

In the picture it looks like it has a shape, but it does not. It's a bag. Rather loose. Bigger then I wanted.

Good build quality and properly sized. Filled to 80%-90% capacity, my bag fit easily into the Frontier Airlines bag sizers (8" x 14" x 18") at departures gates and under the seats in front of mine. Another thoughtful feature is the adjustable carry straps. By increasing the carry strap loop size and adjusting the shoulder strap to match, slinging the bag over one's shoulder spreads the weight of the bag over six anchor points, instead of just two if one only utilized the shoulder strap. This bodes well for the longer life of the bag. The bag stows into the exterior pocket when turned inside out. It was easy to carry all necessities for a 5-day trip with this bag. Well worth $17.99.

I bought this back to use as a personal item on Spirit and American Airlines and it was a good size. I had no problems boarding. I didn't stuff it and it was still a little large to fit under the seat, so I didn't have much foot room on the flights. For the price, it was perfect for what I needed. The hand straps were very strong, but the shoulder strap didn't hold much weight. When I put it over my shoulder with the long strap, the weight of the bag caused the connector to pop out and the bag fell. I had to put the shorter hand straps over my shoulder and support the bag with my hands. I would buy again without a doubt.

Lightweight and good quality. I am using this on a month long trip as a carry on size where weight is important. It’s not fancy but should work perfectly.