My husband is a truck driver. This I got to replace his new duffle that came unsewn at every seem in the top. Wow it is huge, read the product dementions when ordering!! That being said it is well made, and will not come undone anytime soon. It is heavy duty and well worth the money. It holds all his stuff for a week and plenty of room for extra if he needs to buy anything on the road. This giant one is 50x20 and I could fit his old bag 30x15 and back pack in it and still have room. Zipper is double sewn for durability. Truely wonderful bag.